Updated to mesa-7.8.1

11 files changed, 2388 insertions, 4239 deletions

diff --git a/mesalib/Makefile b/mesalib/Makefile
index 6e6413411..c81a2ec2d 100644
--- a/mesalib/Makefile
+++ b/mesalib/Makefile
@@ -180,7 +180,7 @@ ultrix-gcc:
 
 # Rules for making release tarballs
 
-VERSION=7.8
+VERSION=7.8.1
 DIRECTORY = Mesa-$(VERSION)
 LIB_NAME = MesaLib-$(VERSION)
 DEMO_NAME = MesaDemos-$(VERSION)
diff --git a/mesalib/aclocal.m4 b/mesalib/aclocal.m4
index 65419c757..e46192caf 100644
--- a/mesalib/aclocal.m4
+++ b/mesalib/aclocal.m4
@@ -79,14 +79,16 @@ fi])
 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
 # ---------------------------------------------
 m4_define([_PKG_CONFIG],
-[if test -n "$$1"; then
-    pkg_cv_[]$1="$$1"
- elif test -n "$PKG_CONFIG"; then
-    PKG_CHECK_EXISTS([$3],
-                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
-		     [pkg_failed=yes])
- else
-    pkg_failed=untried
+[if test -n "$PKG_CONFIG"; then
+    if test -n "$$1"; then
+        pkg_cv_[]$1="$$1"
+    else
+        PKG_CHECK_EXISTS([$3],
+                         [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
+			 [pkg_failed=yes])
+    fi
+else
+	pkg_failed=untried
 fi[]dnl
 ])# _PKG_CONFIG
 
@@ -130,9 +132,9 @@ See the pkg-config man page for more details.])
 if test $pkg_failed = yes; then
         _PKG_SHORT_ERRORS_SUPPORTED
         if test $_pkg_short_errors_supported = yes; then
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
         else 
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
diff --git a/mesalib/configs/default b/mesalib/configs/default
index ad6d93c92..47d6923f0 100644
--- a/mesalib/configs/default
+++ b/mesalib/configs/default
@@ -10,7 +10,7 @@ CONFIG_NAME = default
 # Version info
 MESA_MAJOR=7
 MESA_MINOR=8
-MESA_TINY=0
+MESA_TINY=1
 MESA_VERSION = $(MESA_MAJOR).$(MESA_MINOR).$(MESA_TINY)
 
 # external projects.  This should be useless now that we use libdrm.
diff --git a/mesalib/configure b/mesalib/configure
index 14651ee97..6b33f88ac 100644
--- a/mesalib/configure
+++ b/mesalib/configure
@@ -1,20 +1,24 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.63 for Mesa 7.8.0.
+# Generated by GNU Autoconf 2.65 for Mesa 7.8.1.
 #
 # Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa>.
 #
+#
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+#
+#
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -22,23 +26,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -46,7 +42,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -57,7 +59,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -80,13 +82,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -96,15 +91,15 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -116,12 +111,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -133,330 +132,301 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-
-# Name of the executable.
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
 # CDPATH.
-$as_unset CDPATH
-
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 if test "x$CONFIG_SHELL" = x; then
-  if (eval ":") 2>/dev/null; then
-  as_have_required=yes
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
 else
-  as_have_required=no
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
 fi
-
-  if test $as_have_required = yes &&	 (eval ":
-(as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
 
 exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
 else
-  exitcode=1
-  echo positional parameters were not saved.
+  as_have_required=no
 fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
 
-test \$exitcode = 0) || { (exit 1); exit 1; }
-
-(
-  as_lineno_1=\$LINENO
-  as_lineno_2=\$LINENO
-  test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" &&
-  test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; }
-") 2> /dev/null; then
-  :
 else
-  as_candidate_shells=
-    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  case $as_dir in
+  as_found=:
+  case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
-	     as_candidate_shells="$as_candidate_shells $as_dir/$as_base"
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
 	   done;;
        esac
+  as_found=false
 done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
 IFS=$as_save_IFS
 
 
-      for as_shell in $as_candidate_shells $SHELL; do
-	 # Try only shells that exist, to save several forks.
-	 if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		{ ("$as_shell") 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-_ASEOF
-}; then
-  CONFIG_SHELL=$as_shell
-	       as_have_required=yes
-	       if { "$as_shell" 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-(as_func_return () {
-  (exit $1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
-
-exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = "$1" ); then
-  :
-else
-  exitcode=1
-  echo positional parameters were not saved.
-fi
-
-test $exitcode = 0) || { (exit 1); exit 1; }
-
-(
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; }
-
-_ASEOF
-}; then
-  break
-fi
-
-fi
-
-      done
-
-      if test "x$CONFIG_SHELL" != x; then
-  for as_var in BASH_ENV ENV
-	do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
-	done
+      if test "x$CONFIG_SHELL" != x; then :
+  # We cannot yet assume a decent shell, so we have to provide a
+	# neutralization value for shells without unset; and this also
+	# works around shells that cannot unset nonexistent variables.
+	BASH_ENV=/dev/null
+	ENV=/dev/null
+	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
 	export CONFIG_SHELL
 	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
 fi
 
-
-    if test $as_have_required = no; then
-  echo This script requires a shell more modern than all the
-      echo shells that I found on your system.  Please install a
-      echo modern shell, or manually run the script under such a
-      echo shell if you do have one.
-      { (exit 1); exit 1; }
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa
+$0: about your system, including any error possibly output
+$0: before this message. Then install a modern shell, or
+$0: manually run the script under such a shell if you do
+$0: have one."
+  fi
+  exit 1
 fi
-
-
 fi
-
 fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
 
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
 
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
 
-(eval "as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
 
-exitcode=0
-if as_func_success; then
-  :
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
 else
-  exitcode=1
-  echo as_func_success failed.
-fi
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
 
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
 
-if as_func_ret_success; then
-  :
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with status $?, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  fi
+  $as_echo "$as_me: error: $1" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
 else
-  exitcode=1
-  echo as_func_ret_success failed.
+  as_expr=false
 fi
 
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
 fi
 
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
 else
-  exitcode=1
-  echo positional parameters were not saved.
+  as_dirname=false
 fi
 
-test \$exitcode = 0") || {
-  echo No shell found that supports shell functions.
-  echo Please tell bug-autoconf@gnu.org about your system,
-  echo including any error possibly output before this message.
-  echo This can help us improve future autoconf versions.
-  echo Configuration will now proceed without shell functions.
-}
-
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
 
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
 
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
   sed -n '
     p
     /[$]LINENO/=
@@ -473,8 +443,7 @@ test \$exitcode = 0") || {
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # Don't try to exec as it changes $[0], causing all sort of problems
   # (the dirname of $[0] is not the place where we might find the
@@ -484,29 +453,18 @@ test \$exitcode = 0") || {
   exit
 }
 
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
 ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
+case `echo -n x` in #(((((
 -n*)
-  case `echo 'x\c'` in
+  case `echo 'xy\c'` in
   *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
   esac;;
 *)
   ECHO_N='-n';;
 esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
 
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
@@ -536,7 +494,7 @@ rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
 
 if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
+  as_mkdir_p='mkdir -p "$as_dir"'
 else
   test -d ./-p && rmdir ./-p
   as_mkdir_p=false
@@ -555,10 +513,10 @@ else
       if test -d "$1"; then
 	test -d "$1/.";
       else
-	case $1 in
+	case $1 in #(
 	-*)set "./$1";;
 	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
 	???[sx]*):;;*)false;;esac;fi
     '\'' sh
   '
@@ -572,8 +530,8 @@ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
 as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
-
-exec 7<&0 </dev/null 6>&1
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
 
 # Name of the host.
 # hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
@@ -591,14 +549,14 @@ cross_compiling=no
 subdirs=
 MFLAGS=
 MAKEFLAGS=
-SHELL=${CONFIG_SHELL-/bin/sh}
 
 # Identity of this package.
 PACKAGE_NAME='Mesa'
 PACKAGE_TARNAME='mesa'
-PACKAGE_VERSION='7.8.0'
-PACKAGE_STRING='Mesa 7.8.0'
+PACKAGE_VERSION='7.8.1'
+PACKAGE_STRING='Mesa 7.8.1'
 PACKAGE_BUGREPORT='https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa'
+PACKAGE_URL=''
 
 # Factoring default headers for most tests.
 ac_includes_default="\
@@ -808,6 +766,7 @@ bindir
 program_transform_name
 prefix
 exec_prefix
+PACKAGE_URL
 PACKAGE_BUGREPORT
 PACKAGE_STRING
 PACKAGE_VERSION
@@ -1014,8 +973,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1041,8 +999,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1246,8 +1203,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1263,8 +1219,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1294,17 +1249,17 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) { $as_echo "$as_me: error: unrecognized option: $ac_option
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; }
+  -*) as_fn_error "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information."
     ;;
 
   *=*)
     ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
     # Reject names that are not valid shell variable names.
-    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid variable name: $ac_envvar" >&2
-   { (exit 1); exit 1; }; }
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error "invalid variable name: \`$ac_envvar'" ;;
+    esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
 
@@ -1321,15 +1276,13 @@ done
 
 if test -n "$ac_prev"; then
   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
-  { $as_echo "$as_me: error: missing argument to $ac_option" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "missing argument to $ac_option"
 fi
 
 if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
-    fatal) { $as_echo "$as_me: error: unrecognized options: $ac_unrecognized_opts" >&2
-   { (exit 1); exit 1; }; } ;;
+    fatal) as_fn_error "unrecognized options: $ac_unrecognized_opts" ;;
     *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
@@ -1352,8 +1305,7 @@ do
     [\\/$]* | ?:[\\/]* )  continue;;
     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
   esac
-  { $as_echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
 # There might be people who depend on the old broken behavior: `$host'
@@ -1383,11 +1335,9 @@ test "$silent" = yes && exec 6>/dev/null
 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 ac_ls_di=`ls -di .` &&
 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
-  { $as_echo "$as_me: error: working directory cannot be determined" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "working directory cannot be determined"
 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
-  { $as_echo "$as_me: error: pwd does not report name of working directory" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "pwd does not report name of working directory"
 
 
 # Find the source files, if location was not specified.
@@ -1426,13 +1376,11 @@ else
 fi
 if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
-  { $as_echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot find sources ($ac_unique_file) in $srcdir"
 fi
 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 ac_abs_confdir=`(
-	cd "$srcdir" && test -r "./$ac_unique_file" || { $as_echo "$as_me: error: $ac_msg" >&2
-   { (exit 1); exit 1; }; }
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error "$ac_msg"
 	pwd)`
 # When building in place, set srcdir=.
 if test "$ac_abs_confdir" = "$ac_pwd"; then
@@ -1458,7 +1406,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures Mesa 7.8.0 to adapt to many kinds of systems.
+\`configure' configures Mesa 7.8.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1529,7 +1477,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of Mesa 7.8.0:";;
+     short | recursive ) echo "Configuration of Mesa 7.8.1:";;
    esac
   cat <<\_ACEOF
 
@@ -1607,7 +1555,7 @@ Some influential environment variables:
   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
               nonstandard directory <lib dir>
   LIBS        libraries to pass to the linker, e.g. -l<library>
-  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
   CPP         C preprocessor
   CXX         C++ compiler command
@@ -1740,22 +1688,417 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-Mesa configure 7.8.0
-generated by GNU Autoconf 2.63
+Mesa configure 7.8.1
+generated by GNU Autoconf 2.65
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
   exit
 fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_func
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( cat <<\_ASBOX
+## ---------------------------------------------------------------------- ##
+## Report this to https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa ##
+## ---------------------------------------------------------------------- ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_header_compile
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by Mesa $as_me 7.8.0, which was
-generated by GNU Autoconf 2.63.  Invocation command line was
+It was created by Mesa $as_me 7.8.1, which was
+generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
 
@@ -1791,8 +2134,8 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  $as_echo "PATH: $as_dir"
-done
+    $as_echo "PATH: $as_dir"
+  done
 IFS=$as_save_IFS
 
 } >&5
@@ -1829,9 +2172,9 @@ do
       ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
-    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
     2)
-      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+      as_fn_append ac_configure_args1 " '$ac_arg'"
       if test $ac_must_keep_next = true; then
 	ac_must_keep_next=false # Got value, back to normal.
       else
@@ -1847,13 +2190,13 @@ do
 	  -* ) ac_must_keep_next=true ;;
 	esac
       fi
-      ac_configure_args="$ac_configure_args '$ac_arg'"
+      as_fn_append ac_configure_args " '$ac_arg'"
       ;;
     esac
   done
 done
-$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
-$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
 
 # When interrupted or exit'd, cleanup temporary files, and complete
 # config.log.  We remove comments because anyway the quotes in there
@@ -1878,13 +2221,13 @@ _ASBOX
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:$LINENO: WARNING: cache variable $ac_var contains a newline" >&5
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) $as_unset $ac_var ;;
+      *) { eval $ac_var=; unset $ac_var;} ;;
       esac ;;
     esac
   done
@@ -1956,39 +2299,41 @@ _ASBOX
     exit $exit_status
 ' 0
 for ac_signal in 1 2 13 15; do
-  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 done
 ac_signal=0
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
+$as_echo "/* confdefs.h */" > confdefs.h
+
 # Predefined preprocessor variables.
 
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_NAME "$PACKAGE_NAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_TARNAME "$PACKAGE_TARNAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_VERSION "$PACKAGE_VERSION"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_STRING "$PACKAGE_STRING"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
 _ACEOF
 
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
@@ -2006,8 +2351,8 @@ fi
 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
 do
   test "x$ac_site_file" = xNONE && continue
-  if test -r "$ac_site_file"; then
-    { $as_echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file"
@@ -2015,10 +2360,10 @@ $as_echo "$as_me: loading site script $ac_site_file" >&6;}
 done
 
 if test -r "$cache_file"; then
-  # Some versions of bash will fail to source /dev/null (special
-  # files actually), so we avoid doing that.
-  if test -f "$cache_file"; then
-    { $as_echo "$as_me:$LINENO: loading cache $cache_file" >&5
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
 $as_echo "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
@@ -2026,7 +2371,7 @@ $as_echo "$as_me: loading cache $cache_file" >&6;}
     esac
   fi
 else
-  { $as_echo "$as_me:$LINENO: creating cache $cache_file" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
 $as_echo "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
@@ -2041,11 +2386,11 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
@@ -2055,17 +2400,17 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
 $as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
 $as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
 $as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
 $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
@@ -2077,43 +2422,20 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
     esac
     case " $ac_configure_args " in
       *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
-      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
     esac
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  { { $as_echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
-$as_echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
 fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -2124,24 +2446,16 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 ac_aux_dir=
 for ac_dir in bin "$srcdir"/bin; do
-  if test -f "$ac_dir/install-sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install-sh -c"
-    break
-  elif test -f "$ac_dir/install.sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install.sh -c"
-    break
-  elif test -f "$ac_dir/shtool"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/shtool install -c"
-    break
-  fi
+  for ac_t in install-sh install.sh shtool; do
+    if test -f "$ac_dir/$ac_t"; then
+      ac_aux_dir=$ac_dir
+      ac_install_sh="$ac_aux_dir/$ac_t -c"
+      break 2
+    fi
+  done
 done
 if test -z "$ac_aux_dir"; then
-  { { $as_echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in bin \"$srcdir\"/bin" >&5
-$as_echo "$as_me: error: cannot find install-sh or install.sh in bin \"$srcdir\"/bin" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot find install-sh, install.sh, or shtool in bin \"$srcdir\"/bin" "$LINENO" 5
 fi
 
 # These three variables are undocumented and unsupported,
@@ -2155,35 +2469,27 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  { { $as_echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
-$as_echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
-{ $as_echo "$as_me:$LINENO: checking build system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then
+if test "${ac_cv_build+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
 test "x$ac_build_alias" = x &&
-  { { $as_echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
-$as_echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
-$as_echo "$as_me: error: invalid value of canonical build" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -2199,28 +2505,24 @@ IFS=$ac_save_IFS
 case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:$LINENO: checking host system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 $as_echo_n "checking host system type... " >&6; }
-if test "${ac_cv_host+set}" = set; then
+if test "${ac_cv_host+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 $as_echo "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
-$as_echo "$as_me: error: invalid value of canonical host" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
 esac
 host=$ac_cv_host
 ac_save_IFS=$IFS; IFS='-'
@@ -2252,9 +2554,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2265,24 +2567,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2292,9 +2594,9 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2305,24 +2607,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2331,7 +2633,7 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -2345,9 +2647,9 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2358,24 +2660,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2385,9 +2687,9 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2399,18 +2701,18 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 if test $ac_prog_rejected = yes; then
@@ -2429,10 +2731,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2444,9 +2746,9 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2457,24 +2759,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2488,9 +2790,9 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2501,24 +2803,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2531,7 +2833,7 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -2542,57 +2844,37 @@ fi
 fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "no acceptable C compiler found in \$PATH
+See \`config.log' for more details." "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2608,8 +2890,8 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
 ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
@@ -2625,17 +2907,17 @@ do
 done
 rm -f $ac_rmfiles
 
-if { (ac_try="$ac_link_default"
+if { { ac_try="$ac_link_default"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
@@ -2652,7 +2934,7 @@ do
 	# certainly right.
 	break;;
     *.* )
-        if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
@@ -2671,84 +2953,42 @@ test "$ac_cv_exeext" = no && ac_cv_exeext=
 else
   ac_file=''
 fi
-
-{ $as_echo "$as_me:$LINENO: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
-if test -z "$ac_file"; then
-  $as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: C compiler cannot create executables
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C compiler cannot create executables
-See \`config.log' for more details." >&2;}
-   { (exit 77); exit 77; }; }; }
+{ as_fn_set_status 77
+as_fn_error "C compiler cannot create executables
+See \`config.log' for more details." "$LINENO" 5; }; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
 fi
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
-# If not cross compiling, check that we can run a simple program.
-if test "$cross_compiling" != yes; then
-  if { ac_try='./$ac_file'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-    cross_compiling=no
-  else
-    if test "$cross_compiling" = maybe; then
-	cross_compiling=yes
-    else
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
-    fi
-  fi
-fi
-{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
-{ $as_echo "$as_me:$LINENO: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
-
-{ $as_echo "$as_me:$LINENO: checking for suffix of executables" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 $as_echo_n "checking for suffix of executables... " >&6; }
-if { (ac_try="$ac_link"
+if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
@@ -2763,32 +3003,83 @@ for ac_file in conftest.exe conftest conftest.*; do
   esac
 done
 else
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." "$LINENO" 5; }
 fi
-
-rm -f conftest$ac_cv_exeext
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
 $as_echo "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-{ $as_echo "$as_me:$LINENO: checking for suffix of object files" >&5
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if test "${ac_cv_objext+set}" = set; then
+if test "${ac_cv_objext+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2800,17 +3091,17 @@ main ()
 }
 _ACEOF
 rm -f conftest.o conftest.obj
-if { (ac_try="$ac_compile"
+if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -2823,31 +3114,23 @@ else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." "$LINENO" 5; }
 fi
-
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 $as_echo "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then
+if test "${ac_cv_c_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2861,37 +3144,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 $as_echo "$ac_cv_c_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GCC=yes
@@ -2900,20 +3162,16 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then
+if test "${ac_cv_prog_cc_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2924,35 +3182,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2963,36 +3197,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_compile "$LINENO"; then :
 
-	ac_c_werror_flag=$ac_save_c_werror_flag
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3003,42 +3213,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 $as_echo "$ac_cv_prog_cc_g" >&6; }
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -3055,18 +3240,14 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then
+if test "${ac_cv_prog_cc_c89+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
@@ -3123,32 +3304,9 @@ for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
 	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+  if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_c89=$ac_arg
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
@@ -3159,17 +3317,19 @@ fi
 # AC_CACHE_VAL
 case "x$ac_cv_prog_cc_c89" in
   x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 $as_echo "none needed" >&6; } ;;
   xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 $as_echo "unsupported" >&6; } ;;
   *)
     CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
 esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+fi
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -3182,14 +3342,14 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
 $as_echo_n "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
 fi
 if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then
+  if test "${ac_cv_prog_CPP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CPP needs to be expanded
@@ -3204,11 +3364,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -3217,78 +3373,34 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_c_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
+if $ac_preproc_ok; then :
   break
 fi
 
@@ -3300,7 +3412,7 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ $as_echo "$as_me:$LINENO: result: $CPP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
 $as_echo "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
@@ -3311,11 +3423,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -3324,87 +3432,40 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_c_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
 rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
-  :
+if $ac_preproc_ok; then :
+
 else
-  { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." "$LINENO" 5; }
 fi
 
 ac_ext=c
@@ -3421,9 +3482,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3434,24 +3495,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3461,9 +3522,9 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -3474,24 +3535,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3500,7 +3561,7 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -3514,9 +3575,9 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3527,24 +3588,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3554,9 +3615,9 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3568,18 +3629,18 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 if test $ac_prog_rejected = yes; then
@@ -3598,10 +3659,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3613,9 +3674,9 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3626,24 +3687,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3657,9 +3718,9 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -3670,24 +3731,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -3700,7 +3761,7 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -3711,62 +3772,42 @@ fi
 fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+as_fn_error "no acceptable C compiler found in \$PATH
+See \`config.log' for more details." "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then
+if test "${ac_cv_c_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3780,37 +3821,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 $as_echo "$ac_cv_c_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GCC=yes
@@ -3819,20 +3839,16 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then
+if test "${ac_cv_prog_cc_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3843,35 +3859,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3882,36 +3874,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_compile "$LINENO"; then :
 
-	ac_c_werror_flag=$ac_save_c_werror_flag
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3922,42 +3890,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 $as_echo "$ac_cv_prog_cc_g" >&6; }
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -3974,18 +3917,14 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then
+if test "${ac_cv_prog_cc_c89+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
@@ -4042,32 +3981,9 @@ for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
 	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+  if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_c89=$ac_arg
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
@@ -4078,17 +3994,19 @@ fi
 # AC_CACHE_VAL
 case "x$ac_cv_prog_cc_c89" in
   x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 $as_echo "none needed" >&6; } ;;
   xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 $as_echo "unsupported" >&6; } ;;
   *)
     CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
 esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+fi
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -4110,9 +4028,9 @@ if test -z "$CXX"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CXX+set}" = set; then
+if test "${ac_cv_prog_CXX+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CXX"; then
@@ -4123,24 +4041,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
-  { $as_echo "$as_me:$LINENO: result: $CXX" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
 $as_echo "$CXX" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4154,9 +4072,9 @@ if test -z "$CXX"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CXX"; then
@@ -4167,24 +4085,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
 $as_echo "$ac_ct_CXX" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4197,7 +4115,7 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -4208,53 +4126,36 @@ fi
   fi
 fi
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C++ compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
 $as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
-if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4268,37 +4169,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
 $as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GXX=yes
@@ -4307,20 +4187,16 @@ else
 fi
 ac_test_CXXFLAGS=${CXXFLAGS+set}
 ac_save_CXXFLAGS=$CXXFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
 $as_echo_n "checking whether $CXX accepts -g... " >&6; }
-if test "${ac_cv_prog_cxx_g+set}" = set; then
+if test "${ac_cv_prog_cxx_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4331,35 +4207,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_prog_cxx_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CXXFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4370,36 +4222,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
-	ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4410,42 +4238,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_prog_cxx_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
 $as_echo "$ac_cv_prog_cxx_g" >&6; }
 if test "$ac_test_CXXFLAGS" = set; then
   CXXFLAGS=$ac_save_CXXFLAGS
@@ -4472,9 +4275,9 @@ for ac_prog in gmake make
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_MAKE+set}" = set; then
+if test "${ac_cv_prog_MAKE+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MAKE"; then
@@ -4485,24 +4288,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_prog_MAKE="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 MAKE=$ac_cv_prog_MAKE
 if test -n "$MAKE"; then
-  { $as_echo "$as_me:$LINENO: result: $MAKE" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKE" >&5
 $as_echo "$MAKE" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4512,9 +4315,9 @@ done
 
 # Extract the first word of "makedepend", so it can be a program name with args.
 set dummy makedepend; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_MKDEP+set}" = set; then
+if test "${ac_cv_path_MKDEP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $MKDEP in
@@ -4527,14 +4330,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_MKDEP="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4542,19 +4345,19 @@ esac
 fi
 MKDEP=$ac_cv_path_MKDEP
 if test -n "$MKDEP"; then
-  { $as_echo "$as_me:$LINENO: result: $MKDEP" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDEP" >&5
 $as_echo "$MKDEP" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
 
 # Extract the first word of "sed", so it can be a program name with args.
 set dummy sed; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_SED+set}" = set; then
+if test "${ac_cv_path_SED+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $SED in
@@ -4567,14 +4370,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_SED="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4582,10 +4385,10 @@ esac
 fi
 SED=$ac_cv_path_SED
 if test -n "$SED"; then
-  { $as_echo "$as_me:$LINENO: result: $SED" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SED" >&5
 $as_echo "$SED" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4605,10 +4408,10 @@ fi
 # OS/2's system install, which has a completely different semantic
 # ./install, which can be erroneously created by make from ./install.sh.
 # Reject install programs that cannot install multiple files.
-{ $as_echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then
+if test "${ac_cv_path_install+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4616,11 +4419,11 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in
-  ./ | .// | /cC/* | \
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
   /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
-  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
   /usr/ucb/* ) ;;
   *)
     # OSF1 and SCO ODT 3.0 have their own names for install.
@@ -4657,7 +4460,7 @@ case $as_dir/ in
     ;;
 esac
 
-done
+  done
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
@@ -4673,7 +4476,7 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $INSTALL" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
 $as_echo "$INSTALL" >&6; }
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
@@ -4693,9 +4496,9 @@ solaris*)
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_POSIX_SHELL+set}" = set; then
+if test "${ac_cv_path_POSIX_SHELL+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $POSIX_SHELL in
@@ -4708,14 +4511,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_POSIX_SHELL="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4723,10 +4526,10 @@ esac
 fi
 POSIX_SHELL=$ac_cv_path_POSIX_SHELL
 if test -n "$POSIX_SHELL"; then
-  { $as_echo "$as_me:$LINENO: result: $POSIX_SHELL" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $POSIX_SHELL" >&5
 $as_echo "$POSIX_SHELL" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4739,7 +4542,7 @@ done
 esac
 
 if test "x$GCC" = xyes; then
-    { $as_echo "$as_me:$LINENO: checking whether gcc version is sufficient" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether gcc version is sufficient" >&5
 $as_echo_n "checking whether gcc version is sufficient... " >&6; }
     major=0
     minor=0
@@ -4751,13 +4554,11 @@ $as_echo_n "checking whether gcc version is sufficient... " >&6; }
     fi
 
     if test $major -lt 3 -o $major -eq 3 -a $minor -lt 3 ; then
-        { $as_echo "$as_me:$LINENO: result: no" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-        { { $as_echo "$as_me:$LINENO: error: If using GCC, version 3.3.0 or later is required." >&5
-$as_echo "$as_me: error: If using GCC, version 3.3.0 or later is required." >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "If using GCC, version 3.3.0 or later is required." "$LINENO" 5
     else
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
     fi
 fi
@@ -4783,9 +4584,9 @@ if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
+if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -4798,14 +4599,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4813,10 +4614,10 @@ esac
 fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { $as_echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
 $as_echo "$PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4826,9 +4627,9 @@ if test -z "$ac_cv_path_PKG_CONFIG"; then
   ac_pt_PKG_CONFIG=$PKG_CONFIG
   # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
+if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $ac_pt_PKG_CONFIG in
@@ -4841,14 +4642,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4856,10 +4657,10 @@ esac
 fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
 if test -n "$ac_pt_PKG_CONFIG"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
 $as_echo "$ac_pt_PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4868,7 +4669,7 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
@@ -4881,13 +4682,13 @@ fi
 fi
 if test -n "$PKG_CONFIG"; then
 	_pkg_min_version=0.9.0
-	{ $as_echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
 $as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	else
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 		PKG_CONFIG=""
 	fi
@@ -4924,15 +4725,11 @@ if test "x$GCC" = xyes; then
 
     # Enable -fvisibility=hidden if using a gcc that supports it
     save_CFLAGS="$CFLAGS"
-    { $as_echo "$as_me:$LINENO: checking whether $CC supports -fvisibility=hidden" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fvisibility=hidden" >&5
 $as_echo_n "checking whether $CC supports -fvisibility=hidden... " >&6; }
     CFLAGS="$CFLAGS -fvisibility=hidden"
 
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4943,40 +4740,15 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CFLAGS="$save_CFLAGS" ; { $as_echo "$as_me:$LINENO: result: no" >&5
+  CFLAGS="$save_CFLAGS" ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext;
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext;
 
     # Work around aliasing bugs - developers should comment this out
     CFLAGS="$CFLAGS -fno-strict-aliasing"
@@ -4994,7 +4766,7 @@ fi
 
 
 # Check whether --enable-32-bit was given.
-if test "${enable_32_bit+set}" = set; then
+if test "${enable_32_bit+set}" = set; then :
   enableval=$enable_32_bit; enable_32bit="$enableval"
 else
   enable_32bit=auto
@@ -5011,7 +4783,7 @@ if test "x$enable_32bit" = xyes; then
     fi
 fi
 # Check whether --enable-64-bit was given.
-if test "${enable_64_bit+set}" = set; then
+if test "${enable_64_bit+set}" = set; then :
   enableval=$enable_64_bit; enable_64bit="$enableval"
 else
   enable_64bit=auto
@@ -5028,7 +4800,7 @@ if test "x$enable_64bit" = xyes; then
 fi
 
 # Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then
+if test "${enable_static+set}" = set; then :
   enableval=$enable_static; enable_static="$enableval"
 else
   enable_static=no
@@ -5039,13 +4811,11 @@ case "x$enable_static" in
 xyes|xno ) ;;
 x ) enable_static=no ;;
 * )
-    { { $as_echo "$as_me:$LINENO: error: Static library option '$enable_static' is not a valid" >&5
-$as_echo "$as_me: error: Static library option '$enable_static' is not a valid" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "Static library option '$enable_static' is not a valid" "$LINENO" 5
     ;;
 esac
 # Check whether --enable-shared was given.
-if test "${enable_shared+set}" = set; then
+if test "${enable_shared+set}" = set; then :
   enableval=$enable_shared; enable_shared="$enableval"
 else
   enable_shared=yes
@@ -5056,20 +4826,18 @@ case "x$enable_shared" in
 xyes|xno ) ;;
 x ) enable_shared=yes ;;
 * )
-    { { $as_echo "$as_me:$LINENO: error: Shared library option '$enable_shared' is not a valid" >&5
-$as_echo "$as_me: error: Shared library option '$enable_shared' is not a valid" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "Shared library option '$enable_shared' is not a valid" "$LINENO" 5
     ;;
 esac
 
 case "x$enable_static$enable_shared" in
 xyesyes )
-    { $as_echo "$as_me:$LINENO: WARNING: Can't build static and shared libraries, disabling shared" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Can't build static and shared libraries, disabling shared" >&5
 $as_echo "$as_me: WARNING: Can't build static and shared libraries, disabling shared" >&2;}
     enable_shared=no
     ;;
 xnono )
-    { $as_echo "$as_me:$LINENO: WARNING: Can't disable both static and shared libraries, enabling static" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Can't disable both static and shared libraries, enabling static" >&5
 $as_echo "$as_me: WARNING: Can't disable both static and shared libraries, enabling static" >&2;}
     enable_static=yes
     ;;
@@ -5082,7 +4850,7 @@ fi
 
 
 # Check whether --enable-debug was given.
-if test "${enable_debug+set}" = set; then
+if test "${enable_debug+set}" = set; then :
   enableval=$enable_debug; enable_debug="$enableval"
 else
   enable_debug=no
@@ -5143,7 +4911,7 @@ EGL_LIB_GLOB='lib$(EGL_LIB).*'${LIB_EXTENSION}'*'
 
 
 # Check whether --enable-asm was given.
-if test "${enable_asm+set}" = set; then
+if test "${enable_asm+set}" = set; then :
   enableval=$enable_asm; enable_asm="$enableval"
 else
   enable_asm=yes
@@ -5154,16 +4922,16 @@ asm_arch=""
 ASM_FLAGS=""
 MESA_ASM_SOURCES=""
 GLAPI_ASM_SOURCES=""
-{ $as_echo "$as_me:$LINENO: checking whether to enable assembly" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable assembly" >&5
 $as_echo_n "checking whether to enable assembly... " >&6; }
-test "x$enable_asm" = xno && { $as_echo "$as_me:$LINENO: result: no" >&5
+test "x$enable_asm" = xno && { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 # disable if cross compiling on x86/x86_64 since we must run gen_matypes
 if test "x$enable_asm" = xyes && test "x$cross_compiling" = xyes; then
     case "$host_cpu" in
     i?86 | x86_64)
         enable_asm=no
-        { $as_echo "$as_me:$LINENO: result: no, cross compiling" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, cross compiling" >&5
 $as_echo "no, cross compiling" >&6; }
         ;;
     esac
@@ -5206,31 +4974,31 @@ if test "x$enable_asm" = xyes; then
         ASM_FLAGS="-DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM"
         MESA_ASM_SOURCES='$(X86_SOURCES)'
         GLAPI_ASM_SOURCES='$(X86_API)'
-        { $as_echo "$as_me:$LINENO: result: yes, x86" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, x86" >&5
 $as_echo "yes, x86" >&6; }
         ;;
     x86_64)
         ASM_FLAGS="-DUSE_X86_64_ASM"
         MESA_ASM_SOURCES='$(X86-64_SOURCES)'
         GLAPI_ASM_SOURCES='$(X86-64_API)'
-        { $as_echo "$as_me:$LINENO: result: yes, x86_64" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, x86_64" >&5
 $as_echo "yes, x86_64" >&6; }
         ;;
     ppc)
         ASM_FLAGS="-DUSE_PPC_ASM -DUSE_VMX_ASM"
         MESA_ASM_SOURCES='$(PPC_SOURCES)'
-        { $as_echo "$as_me:$LINENO: result: yes, ppc" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, ppc" >&5
 $as_echo "yes, ppc" >&6; }
         ;;
     sparc)
         ASM_FLAGS="-DUSE_SPARC_ASM"
         MESA_ASM_SOURCES='$(SPARC_SOURCES)'
         GLAPI_ASM_SOURCES='$(SPARC_API)'
-        { $as_echo "$as_me:$LINENO: result: yes, sparc" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, sparc" >&5
 $as_echo "yes, sparc" >&6; }
         ;;
     *)
-        { $as_echo "$as_me:$LINENO: result: no, platform not supported" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, platform not supported" >&5
 $as_echo "no, platform not supported" >&6; }
         ;;
     esac
@@ -5241,7 +5009,7 @@ fi
 
 
 # Check whether --enable-pic was given.
-if test "${enable_pic+set}" = set; then
+if test "${enable_pic+set}" = set; then :
   enableval=$enable_pic; enable_pic="$enableval"
     test "x$enable_pic" = x && enable_pic=auto
 else
@@ -5254,7 +5022,7 @@ if test "$enable_pic" = auto && test "$enable_static" = yes; then
 fi
 # if PIC hasn't been explicitly disabled, try to figure out the flags
 if test "$enable_pic" != no; then
-    { $as_echo "$as_me:$LINENO: checking for $CC option to produce PIC" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to produce PIC" >&5
 $as_echo_n "checking for $CC option to produce PIC... " >&6; }
     # allow the user's flags to override
     if test "x$PIC_FLAGS" = x; then
@@ -5340,112 +5108,24 @@ $as_echo_n "checking for $CC option to produce PIC... " >&6; }
             esac
         fi # GCC
     fi # PIC_FLAGS
-    { $as_echo "$as_me:$LINENO: result: $PIC_FLAGS" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PIC_FLAGS" >&5
 $as_echo "$PIC_FLAGS" >&6; }
 fi
 
 
 
-{ $as_echo "$as_me:$LINENO: checking for dlopen" >&5
-$as_echo_n "checking for dlopen... " >&6; }
-if test "${ac_cv_func_dlopen+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define dlopen to an innocuous variant, in case <limits.h> declares dlopen.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define dlopen innocuous_dlopen
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char dlopen (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef dlopen
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_dlopen || defined __stub___dlopen
-choke me
-#endif
-
-int
-main ()
-{
-return dlopen ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_dlopen=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_dlopen=no
-fi
+ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = x""yes; then :
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_dlopen" >&5
-$as_echo "$ac_cv_func_dlopen" >&6; }
-if test "x$ac_cv_func_dlopen" = x""yes; then
-  :
 else
-  { $as_echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
 $as_echo_n "checking for dlopen in -ldl... " >&6; }
-if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -5463,141 +5143,32 @@ return dlopen ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_dl_dlopen=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_dl_dlopen=no
+  ac_cv_lib_dl_dlopen=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
 $as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = x""yes; then
+if test "x$ac_cv_lib_dl_dlopen" = x""yes; then :
   DLOPEN_LIBS="-ldl"
 fi
 
 fi
 
 
-{ $as_echo "$as_me:$LINENO: checking for posix_memalign" >&5
-$as_echo_n "checking for posix_memalign... " >&6; }
-if test "${ac_cv_func_posix_memalign+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define posix_memalign to an innocuous variant, in case <limits.h> declares posix_memalign.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define posix_memalign innocuous_posix_memalign
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char posix_memalign (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef posix_memalign
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char posix_memalign ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_posix_memalign || defined __stub___posix_memalign
-choke me
-#endif
-
-int
-main ()
-{
-return posix_memalign ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_posix_memalign=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_posix_memalign=no
-fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_posix_memalign" >&5
-$as_echo "$ac_cv_func_posix_memalign" >&6; }
-if test "x$ac_cv_func_posix_memalign" = x""yes; then
+ac_fn_c_check_func "$LINENO" "posix_memalign" "ac_cv_func_posix_memalign"
+if test "x$ac_cv_func_posix_memalign" = x""yes; then :
   DEFINES="$DEFINES -DHAVE_POSIX_MEMALIGN"
 fi
 
 
 # Check whether --enable-selinux was given.
-if test "${enable_selinux+set}" = set; then
+if test "${enable_selinux+set}" = set; then :
   enableval=$enable_selinux; MESA_SELINUX="$enableval"
 else
   MESA_SELINUX=no
@@ -5605,9 +5176,9 @@ fi
 
 if test "x$enable_selinux" = "xyes"; then
 
-{ $as_echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then
+if test "${ac_cv_path_GREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$GREP"; then
@@ -5618,7 +5189,7 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in grep ggrep; do
+    for ac_prog in grep ggrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
       { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
@@ -5638,7 +5209,7 @@ case `"$ac_path_GREP" --version 2>&1` in
     $as_echo 'GREP' >> "conftest.nl"
     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_GREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_GREP="$ac_path_GREP"
@@ -5653,26 +5224,24 @@ esac
       $ac_path_GREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_GREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_GREP=$GREP
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
 $as_echo "$ac_cv_path_GREP" >&6; }
  GREP="$ac_cv_path_GREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for egrep" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 $as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then
+if test "${ac_cv_path_EGREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
@@ -5686,7 +5255,7 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in egrep; do
+    for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
       { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
@@ -5706,7 +5275,7 @@ case `"$ac_path_EGREP" --version 2>&1` in
     $as_echo 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_EGREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_EGREP="$ac_path_EGREP"
@@ -5721,12 +5290,10 @@ esac
       $ac_path_EGREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_EGREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_EGREP=$EGREP
@@ -5734,21 +5301,17 @@ fi
 
    fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 $as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then
+if test "${ac_cv_header_stdc+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 #include <stdarg.h>
@@ -5763,48 +5326,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_header_stdc=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_header_stdc=no
+  ac_cv_header_stdc=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <string.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then
-  :
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -5814,18 +5352,14 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then
-  :
+  $EGREP "free" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -5835,14 +5369,10 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then
+  if test "$cross_compiling" = yes; then :
   :
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ctype.h>
 #include <stdlib.h>
@@ -5869,118 +5399,34 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  :
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_run "$LINENO"; then :
 
-( exit $ac_status )
-ac_cv_header_stdc=no
+else
+  ac_cv_header_stdc=no
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-
 fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
 $as_echo "$ac_cv_header_stdc" >&6; }
 if test $ac_cv_header_stdc = yes; then
 
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
 
 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
 		  inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  eval "$as_ac_Header=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Header=no"
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-as_val=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-   if test "x$as_val" = x""yes; then
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -5990,160 +5436,22 @@ fi
 done
 
 
-if test "${ac_cv_header_selinux_selinux_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for selinux/selinux.h" >&5
-$as_echo_n "checking for selinux/selinux.h... " >&6; }
-if test "${ac_cv_header_selinux_selinux_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_selinux_selinux_h" >&5
-$as_echo "$ac_cv_header_selinux_selinux_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking selinux/selinux.h usability" >&5
-$as_echo_n "checking selinux/selinux.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <selinux/selinux.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking selinux/selinux.h presence" >&5
-$as_echo_n "checking selinux/selinux.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <selinux/selinux.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: selinux/selinux.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: selinux/selinux.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## ---------------------------------------------------------------------- ##
-## Report this to https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa ##
-## ---------------------------------------------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for selinux/selinux.h" >&5
-$as_echo_n "checking for selinux/selinux.h... " >&6; }
-if test "${ac_cv_header_selinux_selinux_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_selinux_selinux_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_selinux_selinux_h" >&5
-$as_echo "$ac_cv_header_selinux_selinux_h" >&6; }
+ac_fn_c_check_header_mongrel "$LINENO" "selinux/selinux.h" "ac_cv_header_selinux_selinux_h" "$ac_includes_default"
+if test "x$ac_cv_header_selinux_selinux_h" = x""yes; then :
 
-fi
-if test "x$ac_cv_header_selinux_selinux_h" = x""yes; then
-  :
 else
-  { { $as_echo "$as_me:$LINENO: error: SELinux headers not found" >&5
-$as_echo "$as_me: error: SELinux headers not found" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "SELinux headers not found" "$LINENO" 5
 fi
 
 
-
-{ $as_echo "$as_me:$LINENO: checking for is_selinux_enabled in -lselinux" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for is_selinux_enabled in -lselinux" >&5
 $as_echo_n "checking for is_selinux_enabled in -lselinux... " >&6; }
-if test "${ac_cv_lib_selinux_is_selinux_enabled+set}" = set; then
+if test "${ac_cv_lib_selinux_is_selinux_enabled+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lselinux  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -6161,43 +5469,18 @@ return is_selinux_enabled ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_selinux_is_selinux_enabled=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_selinux_is_selinux_enabled=no
+  ac_cv_lib_selinux_is_selinux_enabled=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_selinux_is_selinux_enabled" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_selinux_is_selinux_enabled" >&5
 $as_echo "$ac_cv_lib_selinux_is_selinux_enabled" >&6; }
-if test "x$ac_cv_lib_selinux_is_selinux_enabled" = x""yes; then
+if test "x$ac_cv_lib_selinux_is_selinux_enabled" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBSELINUX 1
 _ACEOF
@@ -6205,9 +5488,7 @@ _ACEOF
   LIBS="-lselinux $LIBS"
 
 else
-  { { $as_echo "$as_me:$LINENO: error: SELinux library not found" >&5
-$as_echo "$as_me: error: SELinux library not found" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "SELinux library not found" "$LINENO" 5
 fi
 
     SELINUX_LIBS="-lselinux"
@@ -6231,7 +5512,7 @@ esac
 
 
 # Check whether --with-driver was given.
-if test "${with_driver+set}" = set; then
+if test "${with_driver+set}" = set; then :
   withval=$with_driver; mesa_driver="$withval"
 else
   mesa_driver="$default_driver"
@@ -6241,9 +5522,7 @@ case "x$mesa_driver" in
 xxlib|xdri|xosmesa)
     ;;
 *)
-    { { $as_echo "$as_me:$LINENO: error: Driver '$mesa_driver' is not a valid option" >&5
-$as_echo "$as_me: error: Driver '$mesa_driver' is not a valid option" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "Driver '$mesa_driver' is not a valid option" "$LINENO" 5
     ;;
 esac
 
@@ -6291,7 +5570,7 @@ else
 fi
 
 # Check whether --with-demos was given.
-if test "${with_demos+set}" = set; then
+if test "${with_demos+set}" = set; then :
   withval=$with_demos; with_demos="$withval"
 else
   with_demos="$default_demos"
@@ -6315,23 +5594,21 @@ yes)
     demos=`IFS=,; echo $with_demos`
     for demo in $demos; do
         test -d "$srcdir/progs/$demo" || \
-            { { $as_echo "$as_me:$LINENO: error: Program directory '$demo' doesn't exist" >&5
-$as_echo "$as_me: error: Program directory '$demo' doesn't exist" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "Program directory '$demo' doesn't exist" "$LINENO" 5
     done
     PROGRAM_DIRS="$demos"
     ;;
 esac
 
 if test -n "$PKG_CONFIG"; then
-    { $as_echo "$as_me:$LINENO: checking pkg-config files for X11 are available" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config files for X11 are available" >&5
 $as_echo_n "checking pkg-config files for X11 are available... " >&6; }
     if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11\"") >&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
 
         x11_pkgconfig=yes
         have_x=yes
@@ -6341,18 +5618,18 @@ else
         x11_pkgconfig=no
 
 fi
-    { $as_echo "$as_me:$LINENO: result: $x11_pkgconfig" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $x11_pkgconfig" >&5
 $as_echo "$x11_pkgconfig" >&6; }
 else
     x11_pkgconfig=no
 fi
 if test "$x11_pkgconfig" = no; then
-    { $as_echo "$as_me:$LINENO: checking for X" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for X" >&5
 $as_echo_n "checking for X... " >&6; }
 
 
 # Check whether --with-x was given.
-if test "${with_x+set}" = set; then
+if test "${with_x+set}" = set; then :
   withval=$with_x;
 fi
 
@@ -6362,10 +5639,8 @@ if test "x$with_x" = xno; then
   have_x=disabled
 else
   case $x_includes,$x_libraries in #(
-    *\'*) { { $as_echo "$as_me:$LINENO: error: cannot use X directory names containing '" >&5
-$as_echo "$as_me: error: cannot use X directory names containing '" >&2;}
-   { (exit 1); exit 1; }; };; #(
-    *,NONE | NONE,*) if test "${ac_cv_have_x+set}" = set; then
+    *\'*) as_fn_error "cannot use X directory names containing '" "$LINENO" 5;; #(
+    *,NONE | NONE,*) if test "${ac_cv_have_x+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   # One or both of the vars are not set, and there is no cached value.
@@ -6413,21 +5688,25 @@ fi
 # Check X11 before X11Rn because it is often a symlink to the current release.
 ac_x_header_dirs='
 /usr/X11/include
+/usr/X11R7/include
 /usr/X11R6/include
 /usr/X11R5/include
 /usr/X11R4/include
 
 /usr/include/X11
+/usr/include/X11R7
 /usr/include/X11R6
 /usr/include/X11R5
 /usr/include/X11R4
 
 /usr/local/X11/include
+/usr/local/X11R7/include
 /usr/local/X11R6/include
 /usr/local/X11R5/include
 /usr/local/X11R4/include
 
 /usr/local/include/X11
+/usr/local/include/X11R7
 /usr/local/include/X11R6
 /usr/local/include/X11R5
 /usr/local/include/X11R4
@@ -6449,37 +5728,14 @@ ac_x_header_dirs='
 if test "$ac_x_includes" = no; then
   # Guess where to find include files, by looking for Xlib.h.
   # First, try using that file with no special directory specified.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <X11/Xlib.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_c_try_cpp "$LINENO"; then :
   # We can compile using X headers with no special include directory.
 ac_x_includes=
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   for ac_dir in $ac_x_header_dirs; do
   if test -r "$ac_dir/X11/Xlib.h"; then
     ac_x_includes=$ac_dir
@@ -6487,7 +5743,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
   fi
 done
 fi
-
 rm -f conftest.err conftest.$ac_ext
 fi # $ac_x_includes = no
 
@@ -6497,11 +5752,7 @@ if test "$ac_x_libraries" = no; then
   # Don't add to $LIBS permanently.
   ac_save_LIBS=$LIBS
   LIBS="-lX11 $LIBS"
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <X11/Xlib.h>
 int
@@ -6512,35 +5763,12 @@ XrmInitialize ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   LIBS=$ac_save_LIBS
 # We can link X programs with no special library path.
 ac_x_libraries=
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	LIBS=$ac_save_LIBS
+  LIBS=$ac_save_LIBS
 for ac_dir in `$as_echo "$ac_x_includes $ac_x_header_dirs" | sed s/include/lib/g`
 do
   # Don't even attempt the hair of trying to link an X program!
@@ -6552,10 +5780,8 @@ do
   done
 done
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi # $ac_x_libraries = no
 
 case $ac_x_includes,$ac_x_libraries in #(
@@ -6576,7 +5802,7 @@ fi
 fi # $with_x != no
 
 if test "$have_x" != yes; then
-  { $as_echo "$as_me:$LINENO: result: $have_x" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_x" >&5
 $as_echo "$have_x" >&6; }
   no_x=yes
 else
@@ -6587,16 +5813,14 @@ else
   ac_cv_have_x="have_x=yes\
 	ac_x_includes='$x_includes'\
 	ac_x_libraries='$x_libraries'"
-  { $as_echo "$as_me:$LINENO: result: libraries $x_libraries, headers $x_includes" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: libraries $x_libraries, headers $x_includes" >&5
 $as_echo "libraries $x_libraries, headers $x_includes" >&6; }
 fi
 
 if test "$no_x" = yes; then
   # Not all programs may use this symbol, but it does not hurt to define it.
 
-cat >>confdefs.h <<\_ACEOF
-#define X_DISPLAY_MISSING 1
-_ACEOF
+$as_echo "#define X_DISPLAY_MISSING 1" >>confdefs.h
 
   X_CFLAGS= X_PRE_LIBS= X_LIBS= X_EXTRA_LIBS=
 else
@@ -6609,16 +5833,12 @@ else
     X_LIBS="$X_LIBS -L$x_libraries"
     # For Solaris; some versions of Sun CC require a space after -R and
     # others require no space.  Words are not sufficient . . . .
-    { $as_echo "$as_me:$LINENO: checking whether -R must be followed by a space" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -R must be followed by a space" >&5
 $as_echo_n "checking whether -R must be followed by a space... " >&6; }
     ac_xsave_LIBS=$LIBS; LIBS="$LIBS -R$x_libraries"
     ac_xsave_c_werror_flag=$ac_c_werror_flag
     ac_c_werror_flag=yes
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -6629,40 +5849,13 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
        X_LIBS="$X_LIBS -R$x_libraries"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	LIBS="$ac_xsave_LIBS -R $x_libraries"
-       cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  LIBS="$ac_xsave_LIBS -R $x_libraries"
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -6673,46 +5866,19 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	  X_LIBS="$X_LIBS -R $x_libraries"
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	{ $as_echo "$as_me:$LINENO: result: neither works" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: neither works" >&5
 $as_echo "neither works" >&6; }
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
     ac_c_werror_flag=$ac_xsave_c_werror_flag
     LIBS=$ac_xsave_LIBS
   fi
@@ -6728,11 +5894,7 @@ rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
     # libraries were built with DECnet support.  And Karl Berry says
     # the Alpha needs dnet_stub (dnet does not exist).
     ac_xsave_LIBS="$LIBS"; LIBS="$LIBS $X_LIBS -lX11"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -6750,44 +5912,17 @@ return XOpenDisplay ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_link "$LINENO"; then :
 
-	{ $as_echo "$as_me:$LINENO: checking for dnet_ntoa in -ldnet" >&5
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet" >&5
 $as_echo_n "checking for dnet_ntoa in -ldnet... " >&6; }
-if test "${ac_cv_lib_dnet_dnet_ntoa+set}" = set; then
+if test "${ac_cv_lib_dnet_dnet_ntoa+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldnet  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -6805,59 +5940,30 @@ return dnet_ntoa ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_dnet_dnet_ntoa=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_dnet_dnet_ntoa=no
+  ac_cv_lib_dnet_dnet_ntoa=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
 $as_echo "$ac_cv_lib_dnet_dnet_ntoa" >&6; }
-if test "x$ac_cv_lib_dnet_dnet_ntoa" = x""yes; then
+if test "x$ac_cv_lib_dnet_dnet_ntoa" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet"
 fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
-      { $as_echo "$as_me:$LINENO: checking for dnet_ntoa in -ldnet_stub" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet_stub" >&5
 $as_echo_n "checking for dnet_ntoa in -ldnet_stub... " >&6; }
-if test "${ac_cv_lib_dnet_stub_dnet_ntoa+set}" = set; then
+if test "${ac_cv_lib_dnet_stub_dnet_ntoa+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldnet_stub  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -6875,52 +5981,25 @@ return dnet_ntoa ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_dnet_stub_dnet_ntoa=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_dnet_stub_dnet_ntoa=no
+  ac_cv_lib_dnet_stub_dnet_ntoa=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_dnet_stub_dnet_ntoa" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_stub_dnet_ntoa" >&5
 $as_echo "$ac_cv_lib_dnet_stub_dnet_ntoa" >&6; }
-if test "x$ac_cv_lib_dnet_stub_dnet_ntoa" = x""yes; then
+if test "x$ac_cv_lib_dnet_stub_dnet_ntoa" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub"
 fi
 
     fi
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
     LIBS="$ac_xsave_LIBS"
 
     # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
@@ -6931,105 +6010,20 @@ rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
     # on Irix 5.2, according to T.E. Dickey.
     # The functions gethostbyname, getservbyname, and inet_addr are
     # in -lbsd on LynxOS 3.0.1/i386, according to Lars Hecking.
-    { $as_echo "$as_me:$LINENO: checking for gethostbyname" >&5
-$as_echo_n "checking for gethostbyname... " >&6; }
-if test "${ac_cv_func_gethostbyname+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define gethostbyname to an innocuous variant, in case <limits.h> declares gethostbyname.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define gethostbyname innocuous_gethostbyname
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char gethostbyname (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef gethostbyname
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char gethostbyname ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_gethostbyname || defined __stub___gethostbyname
-choke me
-#endif
-
-int
-main ()
-{
-return gethostbyname ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_gethostbyname=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+    ac_fn_c_check_func "$LINENO" "gethostbyname" "ac_cv_func_gethostbyname"
+if test "x$ac_cv_func_gethostbyname" = x""yes; then :
 
-	ac_cv_func_gethostbyname=no
 fi
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_gethostbyname" >&5
-$as_echo "$ac_cv_func_gethostbyname" >&6; }
-
     if test $ac_cv_func_gethostbyname = no; then
-      { $as_echo "$as_me:$LINENO: checking for gethostbyname in -lnsl" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5
 $as_echo_n "checking for gethostbyname in -lnsl... " >&6; }
-if test "${ac_cv_lib_nsl_gethostbyname+set}" = set; then
+if test "${ac_cv_lib_nsl_gethostbyname+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lnsl  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7047,59 +6041,30 @@ return gethostbyname ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_nsl_gethostbyname=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_nsl_gethostbyname=no
+  ac_cv_lib_nsl_gethostbyname=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_nsl_gethostbyname" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5
 $as_echo "$ac_cv_lib_nsl_gethostbyname" >&6; }
-if test "x$ac_cv_lib_nsl_gethostbyname" = x""yes; then
+if test "x$ac_cv_lib_nsl_gethostbyname" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl"
 fi
 
       if test $ac_cv_lib_nsl_gethostbyname = no; then
-	{ $as_echo "$as_me:$LINENO: checking for gethostbyname in -lbsd" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lbsd" >&5
 $as_echo_n "checking for gethostbyname in -lbsd... " >&6; }
-if test "${ac_cv_lib_bsd_gethostbyname+set}" = set; then
+if test "${ac_cv_lib_bsd_gethostbyname+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lbsd  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7117,43 +6082,18 @@ return gethostbyname ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_bsd_gethostbyname=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_bsd_gethostbyname=no
+  ac_cv_lib_bsd_gethostbyname=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_gethostbyname" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bsd_gethostbyname" >&5
 $as_echo "$ac_cv_lib_bsd_gethostbyname" >&6; }
-if test "x$ac_cv_lib_bsd_gethostbyname" = x""yes; then
+if test "x$ac_cv_lib_bsd_gethostbyname" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd"
 fi
 
@@ -7167,105 +6107,20 @@ fi
     # variants that don't use the name server (or something).  -lsocket
     # must be given before -lnsl if both are needed.  We assume that
     # if connect needs -lnsl, so does gethostbyname.
-    { $as_echo "$as_me:$LINENO: checking for connect" >&5
-$as_echo_n "checking for connect... " >&6; }
-if test "${ac_cv_func_connect+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define connect to an innocuous variant, in case <limits.h> declares connect.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define connect innocuous_connect
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char connect (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef connect
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char connect ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_connect || defined __stub___connect
-choke me
-#endif
-
-int
-main ()
-{
-return connect ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_connect=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_connect=no
-fi
+    ac_fn_c_check_func "$LINENO" "connect" "ac_cv_func_connect"
+if test "x$ac_cv_func_connect" = x""yes; then :
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_connect" >&5
-$as_echo "$ac_cv_func_connect" >&6; }
 
     if test $ac_cv_func_connect = no; then
-      { $as_echo "$as_me:$LINENO: checking for connect in -lsocket" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for connect in -lsocket" >&5
 $as_echo_n "checking for connect in -lsocket... " >&6; }
-if test "${ac_cv_lib_socket_connect+set}" = set; then
+if test "${ac_cv_lib_socket_connect+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7283,148 +6138,38 @@ return connect ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_socket_connect=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_socket_connect=no
+  ac_cv_lib_socket_connect=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_socket_connect" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_connect" >&5
 $as_echo "$ac_cv_lib_socket_connect" >&6; }
-if test "x$ac_cv_lib_socket_connect" = x""yes; then
+if test "x$ac_cv_lib_socket_connect" = x""yes; then :
   X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS"
 fi
 
     fi
 
     # Guillermo Gomez says -lposix is necessary on A/UX.
-    { $as_echo "$as_me:$LINENO: checking for remove" >&5
-$as_echo_n "checking for remove... " >&6; }
-if test "${ac_cv_func_remove+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define remove to an innocuous variant, in case <limits.h> declares remove.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define remove innocuous_remove
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char remove (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef remove
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char remove ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_remove || defined __stub___remove
-choke me
-#endif
-
-int
-main ()
-{
-return remove ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_remove=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_remove=no
-fi
+    ac_fn_c_check_func "$LINENO" "remove" "ac_cv_func_remove"
+if test "x$ac_cv_func_remove" = x""yes; then :
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_remove" >&5
-$as_echo "$ac_cv_func_remove" >&6; }
 
     if test $ac_cv_func_remove = no; then
-      { $as_echo "$as_me:$LINENO: checking for remove in -lposix" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for remove in -lposix" >&5
 $as_echo_n "checking for remove in -lposix... " >&6; }
-if test "${ac_cv_lib_posix_remove+set}" = set; then
+if test "${ac_cv_lib_posix_remove+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lposix  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7442,148 +6187,38 @@ return remove ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_posix_remove=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_posix_remove=no
+  ac_cv_lib_posix_remove=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_posix_remove" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_posix_remove" >&5
 $as_echo "$ac_cv_lib_posix_remove" >&6; }
-if test "x$ac_cv_lib_posix_remove" = x""yes; then
+if test "x$ac_cv_lib_posix_remove" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lposix"
 fi
 
     fi
 
     # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
-    { $as_echo "$as_me:$LINENO: checking for shmat" >&5
-$as_echo_n "checking for shmat... " >&6; }
-if test "${ac_cv_func_shmat+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define shmat to an innocuous variant, in case <limits.h> declares shmat.
-   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
-#define shmat innocuous_shmat
-
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char shmat (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef shmat
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char shmat ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined __stub_shmat || defined __stub___shmat
-choke me
-#endif
-
-int
-main ()
-{
-return shmat ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
-  ac_cv_func_shmat=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_func_shmat=no
-fi
+    ac_fn_c_check_func "$LINENO" "shmat" "ac_cv_func_shmat"
+if test "x$ac_cv_func_shmat" = x""yes; then :
 
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_shmat" >&5
-$as_echo "$ac_cv_func_shmat" >&6; }
 
     if test $ac_cv_func_shmat = no; then
-      { $as_echo "$as_me:$LINENO: checking for shmat in -lipc" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shmat in -lipc" >&5
 $as_echo_n "checking for shmat in -lipc... " >&6; }
-if test "${ac_cv_lib_ipc_shmat+set}" = set; then
+if test "${ac_cv_lib_ipc_shmat+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lipc  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7601,43 +6236,18 @@ return shmat ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_ipc_shmat=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_ipc_shmat=no
+  ac_cv_lib_ipc_shmat=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_ipc_shmat" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ipc_shmat" >&5
 $as_echo "$ac_cv_lib_ipc_shmat" >&6; }
-if test "x$ac_cv_lib_ipc_shmat" = x""yes; then
+if test "x$ac_cv_lib_ipc_shmat" = x""yes; then :
   X_EXTRA_LIBS="$X_EXTRA_LIBS -lipc"
 fi
 
@@ -7653,18 +6263,14 @@ fi
   # These have to be linked with before -lX11, unlike the other
   # libraries we check for below, so use a different variable.
   # John Interrante, Karl Berry
-  { $as_echo "$as_me:$LINENO: checking for IceConnectionNumber in -lICE" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for IceConnectionNumber in -lICE" >&5
 $as_echo_n "checking for IceConnectionNumber in -lICE... " >&6; }
-if test "${ac_cv_lib_ICE_IceConnectionNumber+set}" = set; then
+if test "${ac_cv_lib_ICE_IceConnectionNumber+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lICE $X_EXTRA_LIBS $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -7682,43 +6288,18 @@ return IceConnectionNumber ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_ICE_IceConnectionNumber=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_ICE_IceConnectionNumber=no
+  ac_cv_lib_ICE_IceConnectionNumber=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_ICE_IceConnectionNumber" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ICE_IceConnectionNumber" >&5
 $as_echo "$ac_cv_lib_ICE_IceConnectionNumber" >&6; }
-if test "x$ac_cv_lib_ICE_IceConnectionNumber" = x""yes; then
+if test "x$ac_cv_lib_ICE_IceConnectionNumber" = x""yes; then :
   X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE"
 fi
 
@@ -7733,15 +6314,13 @@ fi
 case "$mesa_driver" in
 xlib|dri)
     if test "$no_x" = yes; then
-        { { $as_echo "$as_me:$LINENO: error: X11 development libraries needed for $mesa_driver driver" >&5
-$as_echo "$as_me: error: X11 development libraries needed for $mesa_driver driver" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "X11 development libraries needed for $mesa_driver driver" "$LINENO" 5
     fi
     ;;
 esac
 
 # Check whether --enable-xcb was given.
-if test "${enable_xcb+set}" = set; then
+if test "${enable_xcb+set}" = set; then :
   enableval=$enable_xcb; enable_xcb="$enableval"
 else
   enable_xcb=no
@@ -7758,40 +6337,44 @@ xlib)
     if test "$x11_pkgconfig" = yes; then
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for XLIBGL" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for XLIBGL" >&5
 $as_echo_n "checking for XLIBGL... " >&6; }
 
-if test -n "$XLIBGL_CFLAGS"; then
-    pkg_cv_XLIBGL_CFLAGS="$XLIBGL_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xext\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XLIBGL_CFLAGS"; then
+        pkg_cv_XLIBGL_CFLAGS="$XLIBGL_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xext\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xext") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XLIBGL_CFLAGS=`$PKG_CONFIG --cflags "x11 xext" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$XLIBGL_LIBS"; then
-    pkg_cv_XLIBGL_LIBS="$XLIBGL_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xext\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XLIBGL_LIBS"; then
+        pkg_cv_XLIBGL_LIBS="$XLIBGL_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xext\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xext") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XLIBGL_LIBS=`$PKG_CONFIG --libs "x11 xext" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -7804,25 +6387,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        XLIBGL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "x11 xext" 2>&1`
+	        XLIBGL_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "x11 xext"`
         else
-	        XLIBGL_PKG_ERRORS=`$PKG_CONFIG --print-errors "x11 xext" 2>&1`
+	        XLIBGL_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11 xext"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$XLIBGL_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (x11 xext) were not met:
-
-$XLIBGL_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables XLIBGL_CFLAGS
-and XLIBGL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (x11 xext) were not met:
+	as_fn_error "Package requirements (x11 xext) were not met:
 
 $XLIBGL_PKG_ERRORS
 
@@ -7832,22 +6404,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables XLIBGL_CFLAGS
 and XLIBGL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables XLIBGL_CFLAGS
-and XLIBGL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -7856,12 +6417,11 @@ and XLIBGL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	XLIBGL_CFLAGS=$pkg_cv_XLIBGL_CFLAGS
 	XLIBGL_LIBS=$pkg_cv_XLIBGL_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -7888,48 +6448,50 @@ fi
 dri)
     # DRI must be shared, I think
     if test "$enable_static" = yes; then
-        { { $as_echo "$as_me:$LINENO: error: Can't use static libraries for DRI drivers" >&5
-$as_echo "$as_me: error: Can't use static libraries for DRI drivers" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "Can't use static libraries for DRI drivers" "$LINENO" 5
     fi
 
     # Check for libdrm
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for LIBDRM" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBDRM" >&5
 $as_echo_n "checking for LIBDRM... " >&6; }
 
-if test -n "$LIBDRM_CFLAGS"; then
-    pkg_cv_LIBDRM_CFLAGS="$LIBDRM_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_CFLAGS"; then
+        pkg_cv_LIBDRM_CFLAGS="$LIBDRM_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= $LIBDRM_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_CFLAGS=`$PKG_CONFIG --cflags "libdrm >= $LIBDRM_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$LIBDRM_LIBS"; then
-    pkg_cv_LIBDRM_LIBS="$LIBDRM_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_LIBS"; then
+        pkg_cv_LIBDRM_LIBS="$LIBDRM_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= $LIBDRM_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_LIBS=`$PKG_CONFIG --libs "libdrm >= $LIBDRM_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -7942,25 +6504,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        LIBDRM_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libdrm >= $LIBDRM_REQUIRED" 2>&1`
+	        LIBDRM_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libdrm >= $LIBDRM_REQUIRED"`
         else
-	        LIBDRM_PKG_ERRORS=`$PKG_CONFIG --print-errors "libdrm >= $LIBDRM_REQUIRED" 2>&1`
+	        LIBDRM_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libdrm >= $LIBDRM_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$LIBDRM_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (libdrm >= $LIBDRM_REQUIRED) were not met:
-
-$LIBDRM_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables LIBDRM_CFLAGS
-and LIBDRM_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (libdrm >= $LIBDRM_REQUIRED) were not met:
+	as_fn_error "Package requirements (libdrm >= $LIBDRM_REQUIRED) were not met:
 
 $LIBDRM_PKG_ERRORS
 
@@ -7970,22 +6521,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables LIBDRM_CFLAGS
 and LIBDRM_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables LIBDRM_CFLAGS
-and LIBDRM_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -7994,51 +6534,54 @@ and LIBDRM_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	LIBDRM_CFLAGS=$pkg_cv_LIBDRM_CFLAGS
 	LIBDRM_LIBS=$pkg_cv_LIBDRM_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for DRI2PROTO" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for DRI2PROTO" >&5
 $as_echo_n "checking for DRI2PROTO... " >&6; }
 
-if test -n "$DRI2PROTO_CFLAGS"; then
-    pkg_cv_DRI2PROTO_CFLAGS="$DRI2PROTO_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"dri2proto >= \$DRI2PROTO_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$DRI2PROTO_CFLAGS"; then
+        pkg_cv_DRI2PROTO_CFLAGS="$DRI2PROTO_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dri2proto >= \$DRI2PROTO_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "dri2proto >= $DRI2PROTO_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_DRI2PROTO_CFLAGS=`$PKG_CONFIG --cflags "dri2proto >= $DRI2PROTO_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$DRI2PROTO_LIBS"; then
-    pkg_cv_DRI2PROTO_LIBS="$DRI2PROTO_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"dri2proto >= \$DRI2PROTO_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$DRI2PROTO_LIBS"; then
+        pkg_cv_DRI2PROTO_LIBS="$DRI2PROTO_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"dri2proto >= \$DRI2PROTO_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "dri2proto >= $DRI2PROTO_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_DRI2PROTO_LIBS=`$PKG_CONFIG --libs "dri2proto >= $DRI2PROTO_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -8051,25 +6594,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        DRI2PROTO_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "dri2proto >= $DRI2PROTO_REQUIRED" 2>&1`
+	        DRI2PROTO_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "dri2proto >= $DRI2PROTO_REQUIRED"`
         else
-	        DRI2PROTO_PKG_ERRORS=`$PKG_CONFIG --print-errors "dri2proto >= $DRI2PROTO_REQUIRED" 2>&1`
+	        DRI2PROTO_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "dri2proto >= $DRI2PROTO_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$DRI2PROTO_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (dri2proto >= $DRI2PROTO_REQUIRED) were not met:
-
-$DRI2PROTO_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables DRI2PROTO_CFLAGS
-and DRI2PROTO_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (dri2proto >= $DRI2PROTO_REQUIRED) were not met:
+	as_fn_error "Package requirements (dri2proto >= $DRI2PROTO_REQUIRED) were not met:
 
 $DRI2PROTO_PKG_ERRORS
 
@@ -8079,22 +6611,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables DRI2PROTO_CFLAGS
 and DRI2PROTO_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables DRI2PROTO_CFLAGS
-and DRI2PROTO_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -8103,51 +6624,54 @@ and DRI2PROTO_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	DRI2PROTO_CFLAGS=$pkg_cv_DRI2PROTO_CFLAGS
 	DRI2PROTO_LIBS=$pkg_cv_DRI2PROTO_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for GLPROTO" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLPROTO" >&5
 $as_echo_n "checking for GLPROTO... " >&6; }
 
-if test -n "$GLPROTO_CFLAGS"; then
-    pkg_cv_GLPROTO_CFLAGS="$GLPROTO_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"glproto >= \$GLPROTO_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLPROTO_CFLAGS"; then
+        pkg_cv_GLPROTO_CFLAGS="$GLPROTO_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"glproto >= \$GLPROTO_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "glproto >= $GLPROTO_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLPROTO_CFLAGS=`$PKG_CONFIG --cflags "glproto >= $GLPROTO_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$GLPROTO_LIBS"; then
-    pkg_cv_GLPROTO_LIBS="$GLPROTO_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"glproto >= \$GLPROTO_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLPROTO_LIBS"; then
+        pkg_cv_GLPROTO_LIBS="$GLPROTO_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"glproto >= \$GLPROTO_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "glproto >= $GLPROTO_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLPROTO_LIBS=`$PKG_CONFIG --libs "glproto >= $GLPROTO_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -8160,25 +6684,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        GLPROTO_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "glproto >= $GLPROTO_REQUIRED" 2>&1`
+	        GLPROTO_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "glproto >= $GLPROTO_REQUIRED"`
         else
-	        GLPROTO_PKG_ERRORS=`$PKG_CONFIG --print-errors "glproto >= $GLPROTO_REQUIRED" 2>&1`
+	        GLPROTO_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "glproto >= $GLPROTO_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$GLPROTO_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (glproto >= $GLPROTO_REQUIRED) were not met:
-
-$GLPROTO_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables GLPROTO_CFLAGS
-and GLPROTO_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (glproto >= $GLPROTO_REQUIRED) were not met:
+	as_fn_error "Package requirements (glproto >= $GLPROTO_REQUIRED) were not met:
 
 $GLPROTO_PKG_ERRORS
 
@@ -8188,12 +6701,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables GLPROTO_CFLAGS
 and GLPROTO_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -8202,22 +6714,11 @@ and GLPROTO_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables GLPROTO_CFLAGS
-and GLPROTO_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	GLPROTO_CFLAGS=$pkg_cv_GLPROTO_CFLAGS
 	GLPROTO_LIBS=$pkg_cv_GLPROTO_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -8234,40 +6735,44 @@ fi
 
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for DRIGL" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for DRIGL" >&5
 $as_echo_n "checking for DRIGL... " >&6; }
 
-if test -n "$DRIGL_CFLAGS"; then
-    pkg_cv_DRIGL_CFLAGS="$DRIGL_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$dri_modules\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$DRIGL_CFLAGS"; then
+        pkg_cv_DRIGL_CFLAGS="$DRIGL_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"\$dri_modules\""; } >&5
   ($PKG_CONFIG --exists --print-errors "$dri_modules") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_DRIGL_CFLAGS=`$PKG_CONFIG --cflags "$dri_modules" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$DRIGL_LIBS"; then
-    pkg_cv_DRIGL_LIBS="$DRIGL_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"\$dri_modules\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$DRIGL_LIBS"; then
+        pkg_cv_DRIGL_LIBS="$DRIGL_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"\$dri_modules\""; } >&5
   ($PKG_CONFIG --exists --print-errors "$dri_modules") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_DRIGL_LIBS=`$PKG_CONFIG --libs "$dri_modules" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -8280,25 +6785,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        DRIGL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$dri_modules" 2>&1`
+	        DRIGL_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$dri_modules"`
         else
-	        DRIGL_PKG_ERRORS=`$PKG_CONFIG --print-errors "$dri_modules" 2>&1`
+	        DRIGL_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$dri_modules"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$DRIGL_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements ($dri_modules) were not met:
-
-$DRIGL_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables DRIGL_CFLAGS
-and DRIGL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements ($dri_modules) were not met:
+	as_fn_error "Package requirements ($dri_modules) were not met:
 
 $DRIGL_PKG_ERRORS
 
@@ -8308,22 +6802,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables DRIGL_CFLAGS
 and DRIGL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables DRIGL_CFLAGS
-and DRIGL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -8332,12 +6815,11 @@ and DRIGL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	DRIGL_CFLAGS=$pkg_cv_DRIGL_CFLAGS
 	DRIGL_LIBS=$pkg_cv_DRIGL_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -8355,40 +6837,44 @@ fi
         if test "$enable_xcb" = yes; then
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for XCB" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for XCB" >&5
 $as_echo_n "checking for XCB... " >&6; }
 
-if test -n "$XCB_CFLAGS"; then
-    pkg_cv_XCB_CFLAGS="$XCB_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-glx\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XCB_CFLAGS"; then
+        pkg_cv_XCB_CFLAGS="$XCB_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-glx\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11-xcb xcb-glx") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XCB_CFLAGS=`$PKG_CONFIG --cflags "x11-xcb xcb-glx" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$XCB_LIBS"; then
-    pkg_cv_XCB_LIBS="$XCB_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-glx\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XCB_LIBS"; then
+        pkg_cv_XCB_LIBS="$XCB_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-glx\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11-xcb xcb-glx") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XCB_LIBS=`$PKG_CONFIG --libs "x11-xcb xcb-glx" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -8401,25 +6887,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        XCB_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "x11-xcb xcb-glx" 2>&1`
+	        XCB_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "x11-xcb xcb-glx"`
         else
-	        XCB_PKG_ERRORS=`$PKG_CONFIG --print-errors "x11-xcb xcb-glx" 2>&1`
+	        XCB_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11-xcb xcb-glx"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$XCB_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (x11-xcb xcb-glx) were not met:
-
-$XCB_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables XCB_CFLAGS
-and XCB_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (x11-xcb xcb-glx) were not met:
+	as_fn_error "Package requirements (x11-xcb xcb-glx) were not met:
 
 $XCB_PKG_ERRORS
 
@@ -8429,22 +6904,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables XCB_CFLAGS
 and XCB_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables XCB_CFLAGS
-and XCB_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -8453,12 +6917,11 @@ and XCB_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	XCB_CFLAGS=$pkg_cv_XCB_CFLAGS
 	XCB_LIBS=$pkg_cv_XCB_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -8488,7 +6951,7 @@ if test "$mesa_driver" = xlib; then
 fi
 
 # Check whether --enable-glx-tls was given.
-if test "${enable_glx_tls+set}" = set; then
+if test "${enable_glx_tls+set}" = set; then :
   enableval=$enable_glx_tls; GLX_USE_TLS="$enableval"
 else
   GLX_USE_TLS=no
@@ -8496,7 +6959,7 @@ fi
 
 
 # Check whether --with-dri-driverdir was given.
-if test "${with_dri_driverdir+set}" = set; then
+if test "${with_dri_driverdir+set}" = set; then :
   withval=$with_dri_driverdir; DRI_DRIVER_INSTALL_DIR="$withval"
 else
   DRI_DRIVER_INSTALL_DIR='${libdir}/dri'
@@ -8505,7 +6968,7 @@ fi
 
 
 # Check whether --with-dri-searchpath was given.
-if test "${with_dri_searchpath+set}" = set; then
+if test "${with_dri_searchpath+set}" = set; then :
   withval=$with_dri_searchpath; DRI_DRIVER_SEARCH_DIR="$withval"
 else
   DRI_DRIVER_SEARCH_DIR='${DRI_DRIVER_INSTALL_DIR}'
@@ -8513,7 +6976,7 @@ fi
 
 
 # Check whether --enable-driglx-direct was given.
-if test "${enable_driglx_direct+set}" = set; then
+if test "${enable_driglx_direct+set}" = set; then :
   enableval=$enable_driglx_direct; driglx_direct="$enableval"
 else
   driglx_direct="yes"
@@ -8521,7 +6984,7 @@ fi
 
 
 # Check whether --with-dri-drivers was given.
-if test "${with_dri_drivers+set}" = set; then
+if test "${with_dri_drivers+set}" = set; then :
   withval=$with_dri_drivers; with_dri_drivers="$withval"
 else
   with_dri_drivers=yes
@@ -8542,9 +7005,7 @@ yes)
     dri_drivers=`IFS=', '; echo $with_dri_drivers`
     for driver in $dri_drivers; do
         test -d "$srcdir/src/mesa/drivers/dri/$driver" || \
-            { { $as_echo "$as_me:$LINENO: error: DRI driver directory '$driver' doesn't exist" >&5
-$as_echo "$as_me: error: DRI driver directory '$driver' doesn't exist" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "DRI driver directory '$driver' doesn't exist" "$LINENO" 5
     done
     DRI_DIRS="$dri_drivers"
     ;;
@@ -8632,7 +7093,7 @@ if test "$mesa_driver" = dri; then
     EXPAT_LIB=-lexpat
 
 # Check whether --with-expat was given.
-if test "${with_expat+set}" = set; then
+if test "${with_expat+set}" = set; then :
   withval=$with_expat;
         EXPAT_INCLUDES="-I$withval/include"
         CPPFLAGS="$CPPFLAGS $EXPAT_INCLUDES"
@@ -8641,160 +7102,22 @@ if test "${with_expat+set}" = set; then
 
 fi
 
-    if test "${ac_cv_header_expat_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for expat.h" >&5
-$as_echo_n "checking for expat.h... " >&6; }
-if test "${ac_cv_header_expat_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_expat_h" >&5
-$as_echo "$ac_cv_header_expat_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking expat.h usability" >&5
-$as_echo_n "checking expat.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <expat.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking expat.h presence" >&5
-$as_echo_n "checking expat.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <expat.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: expat.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: expat.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: expat.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: expat.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: expat.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: expat.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: expat.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: expat.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: expat.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## ---------------------------------------------------------------------- ##
-## Report this to https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa ##
-## ---------------------------------------------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for expat.h" >&5
-$as_echo_n "checking for expat.h... " >&6; }
-if test "${ac_cv_header_expat_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_header_expat_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_expat_h" >&5
-$as_echo "$ac_cv_header_expat_h" >&6; }
+    ac_fn_c_check_header_mongrel "$LINENO" "expat.h" "ac_cv_header_expat_h" "$ac_includes_default"
+if test "x$ac_cv_header_expat_h" = x""yes; then :
 
-fi
-if test "x$ac_cv_header_expat_h" = x""yes; then
-  :
 else
-  { { $as_echo "$as_me:$LINENO: error: Expat required for DRI." >&5
-$as_echo "$as_me: error: Expat required for DRI." >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "Expat required for DRI." "$LINENO" 5
 fi
 
 
-
-{ $as_echo "$as_me:$LINENO: checking for XML_ParserCreate in -lexpat" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XML_ParserCreate in -lexpat" >&5
 $as_echo_n "checking for XML_ParserCreate in -lexpat... " >&6; }
-if test "${ac_cv_lib_expat_XML_ParserCreate+set}" = set; then
+if test "${ac_cv_lib_expat_XML_ParserCreate+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lexpat  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -8812,43 +7135,18 @@ return XML_ParserCreate ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_expat_XML_ParserCreate=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_expat_XML_ParserCreate=no
+  ac_cv_lib_expat_XML_ParserCreate=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_expat_XML_ParserCreate" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_expat_XML_ParserCreate" >&5
 $as_echo "$ac_cv_lib_expat_XML_ParserCreate" >&6; }
-if test "x$ac_cv_lib_expat_XML_ParserCreate" = x""yes; then
+if test "x$ac_cv_lib_expat_XML_ParserCreate" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBEXPAT 1
 _ACEOF
@@ -8856,9 +7154,7 @@ _ACEOF
   LIBS="-lexpat $LIBS"
 
 else
-  { { $as_echo "$as_me:$LINENO: error: Expat required for DRI." >&5
-$as_echo "$as_me: error: Expat required for DRI." >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "Expat required for DRI." "$LINENO" 5
 fi
 
 
@@ -8873,40 +7169,44 @@ case $DRI_DIRS in
 *i915*|*i965*)
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for INTEL" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for INTEL" >&5
 $as_echo_n "checking for INTEL... " >&6; }
 
-if test -n "$INTEL_CFLAGS"; then
-    pkg_cv_INTEL_CFLAGS="$INTEL_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm_intel >= 2.4.19\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$INTEL_CFLAGS"; then
+        pkg_cv_INTEL_CFLAGS="$INTEL_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm_intel >= 2.4.19\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm_intel >= 2.4.19") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_INTEL_CFLAGS=`$PKG_CONFIG --cflags "libdrm_intel >= 2.4.19" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$INTEL_LIBS"; then
-    pkg_cv_INTEL_LIBS="$INTEL_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm_intel >= 2.4.19\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$INTEL_LIBS"; then
+        pkg_cv_INTEL_LIBS="$INTEL_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm_intel >= 2.4.19\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm_intel >= 2.4.19") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_INTEL_LIBS=`$PKG_CONFIG --libs "libdrm_intel >= 2.4.19" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -8919,25 +7219,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        INTEL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libdrm_intel >= 2.4.19" 2>&1`
+	        INTEL_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libdrm_intel >= 2.4.19"`
         else
-	        INTEL_PKG_ERRORS=`$PKG_CONFIG --print-errors "libdrm_intel >= 2.4.19" 2>&1`
+	        INTEL_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libdrm_intel >= 2.4.19"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$INTEL_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (libdrm_intel >= 2.4.19) were not met:
-
-$INTEL_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables INTEL_CFLAGS
-and INTEL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (libdrm_intel >= 2.4.19) were not met:
+	as_fn_error "Package requirements (libdrm_intel >= 2.4.19) were not met:
 
 $INTEL_PKG_ERRORS
 
@@ -8947,22 +7236,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables INTEL_CFLAGS
 and INTEL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables INTEL_CFLAGS
-and INTEL_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -8971,12 +7249,11 @@ and INTEL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	INTEL_CFLAGS=$pkg_cv_INTEL_CFLAGS
 	INTEL_LIBS=$pkg_cv_INTEL_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -8987,40 +7264,44 @@ case $DRI_DIRS in
 *radeon*|*r200*|*r300*|*r600*)
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for LIBDRM_RADEON" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBDRM_RADEON" >&5
 $as_echo_n "checking for LIBDRM_RADEON... " >&6; }
 
-if test -n "$LIBDRM_RADEON_CFLAGS"; then
-    pkg_cv_LIBDRM_RADEON_CFLAGS="$LIBDRM_RADEON_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm_radeon libdrm >= \$LIBDRM_RADEON_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_RADEON_CFLAGS"; then
+        pkg_cv_LIBDRM_RADEON_CFLAGS="$LIBDRM_RADEON_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm_radeon libdrm >= \$LIBDRM_RADEON_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_RADEON_CFLAGS=`$PKG_CONFIG --cflags "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$LIBDRM_RADEON_LIBS"; then
-    pkg_cv_LIBDRM_RADEON_LIBS="$LIBDRM_RADEON_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm_radeon libdrm >= \$LIBDRM_RADEON_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_RADEON_LIBS"; then
+        pkg_cv_LIBDRM_RADEON_LIBS="$LIBDRM_RADEON_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm_radeon libdrm >= \$LIBDRM_RADEON_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_RADEON_LIBS=`$PKG_CONFIG --libs "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -9033,14 +7314,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        LIBDRM_RADEON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED" 2>&1`
+	        LIBDRM_RADEON_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED"`
         else
-	        LIBDRM_RADEON_PKG_ERRORS=`$PKG_CONFIG --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED" 2>&1`
+	        LIBDRM_RADEON_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$LIBDRM_RADEON_PKG_ERRORS" >&5
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
                 HAVE_LIBDRM_RADEON=no
 elif test $pkg_failed = untried; then
@@ -9048,7 +7329,7 @@ elif test $pkg_failed = untried; then
 else
 	LIBDRM_RADEON_CFLAGS=$pkg_cv_LIBDRM_RADEON_CFLAGS
 	LIBDRM_RADEON_LIBS=$pkg_cv_LIBDRM_RADEON_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	HAVE_LIBDRM_RADEON=yes
 fi
@@ -9069,7 +7350,7 @@ else
     default_gl_osmesa=no
 fi
 # Check whether --enable-gl-osmesa was given.
-if test "${enable_gl_osmesa+set}" = set; then
+if test "${enable_gl_osmesa+set}" = set; then :
   enableval=$enable_gl_osmesa; gl_osmesa="$enableval"
 else
   gl_osmesa="$default_gl_osmesa"
@@ -9077,9 +7358,7 @@ fi
 
 if test "x$gl_osmesa" = xyes; then
     if test "$mesa_driver" = osmesa; then
-        { { $as_echo "$as_me:$LINENO: error: libGL is not available for OSMesa driver" >&5
-$as_echo "$as_me: error: libGL is not available for OSMesa driver" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "libGL is not available for OSMesa driver" "$LINENO" 5
     else
         DRIVER_DIRS="$DRIVER_DIRS osmesa"
     fi
@@ -9087,14 +7366,14 @@ fi
 
 
 # Check whether --with-osmesa-bits was given.
-if test "${with_osmesa_bits+set}" = set; then
+if test "${with_osmesa_bits+set}" = set; then :
   withval=$with_osmesa_bits; osmesa_bits="$withval"
 else
   osmesa_bits=8
 fi
 
 if test "$mesa_driver" != osmesa && test "x$osmesa_bits" != x8; then
-    { $as_echo "$as_me:$LINENO: WARNING: Ignoring OSMesa channel bits for non-OSMesa driver" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Ignoring OSMesa channel bits for non-OSMesa driver" >&5
 $as_echo "$as_me: WARNING: Ignoring OSMesa channel bits for non-OSMesa driver" >&2;}
     osmesa_bits=8
 fi
@@ -9107,9 +7386,7 @@ x16|x32)
     DEFINES="$DEFINES -DCHAN_BITS=$osmesa_bits -DDEFAULT_SOFTWARE_DEPTH_BITS=31"
     ;;
 *)
-    { { $as_echo "$as_me:$LINENO: error: OSMesa bits '$osmesa_bits' is not a valid option" >&5
-$as_echo "$as_me: error: OSMesa bits '$osmesa_bits' is not a valid option" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "OSMesa bits '$osmesa_bits' is not a valid option" "$LINENO" 5
     ;;
 esac
 
@@ -9144,7 +7421,7 @@ OSMESA_PC_LIB_PRIV="$OSMESA_PC_LIB_PRIV"
 
 
 # Check whether --enable-egl was given.
-if test "${enable_egl+set}" = set; then
+if test "${enable_egl+set}" = set; then :
   enableval=$enable_egl; enable_egl="$enableval"
 else
   enable_egl=yes
@@ -9163,40 +7440,44 @@ if test "x$enable_egl" = xyes; then
         # build egl_dri2 when xcb-dri2 is available
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for EGL_DRI2" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EGL_DRI2" >&5
 $as_echo_n "checking for EGL_DRI2... " >&6; }
 
-if test -n "$EGL_DRI2_CFLAGS"; then
-    pkg_cv_EGL_DRI2_CFLAGS="$EGL_DRI2_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-dri2 xcb-xfixes libdrm\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$EGL_DRI2_CFLAGS"; then
+        pkg_cv_EGL_DRI2_CFLAGS="$EGL_DRI2_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-dri2 xcb-xfixes libdrm\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_EGL_DRI2_CFLAGS=`$PKG_CONFIG --cflags "x11-xcb xcb-dri2 xcb-xfixes libdrm" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$EGL_DRI2_LIBS"; then
-    pkg_cv_EGL_DRI2_LIBS="$EGL_DRI2_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-dri2 xcb-xfixes libdrm\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$EGL_DRI2_LIBS"; then
+        pkg_cv_EGL_DRI2_LIBS="$EGL_DRI2_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11-xcb xcb-dri2 xcb-xfixes libdrm\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_EGL_DRI2_LIBS=`$PKG_CONFIG --libs "x11-xcb xcb-dri2 xcb-xfixes libdrm" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -9209,14 +7490,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        EGL_DRI2_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm" 2>&1`
+	        EGL_DRI2_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm"`
         else
-	        EGL_DRI2_PKG_ERRORS=`$PKG_CONFIG --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm" 2>&1`
+	        EGL_DRI2_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11-xcb xcb-dri2 xcb-xfixes libdrm"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$EGL_DRI2_PKG_ERRORS" >&5
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
                 have_xcb_dri2=no
 elif test $pkg_failed = untried; then
@@ -9224,7 +7505,7 @@ elif test $pkg_failed = untried; then
 else
 	EGL_DRI2_CFLAGS=$pkg_cv_EGL_DRI2_CFLAGS
 	EGL_DRI2_LIBS=$pkg_cv_EGL_DRI2_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	have_xcb_dri2=yes
 fi
@@ -9241,7 +7522,7 @@ fi
 
 
 # Check whether --enable-glu was given.
-if test "${enable_glu+set}" = set; then
+if test "${enable_glu+set}" = set; then :
   enableval=$enable_glu; enable_glu="$enableval"
 else
   enable_glu=yes
@@ -9294,19 +7575,19 @@ GLU_PC_LIB_PRIV="$GLU_PC_LIB_PRIV $OS_CPLUSPLUS_LIBS"
 
 
 # Check whether --enable-glw was given.
-if test "${enable_glw+set}" = set; then
+if test "${enable_glw+set}" = set; then :
   enableval=$enable_glw; enable_glw="$enableval"
 else
   enable_glw=yes
 fi
 
 if test "x$enable_glw" = xyes && test "$mesa_driver" = osmesa; then
-    { $as_echo "$as_me:$LINENO: WARNING: Disabling GLw since the driver is OSMesa" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Disabling GLw since the driver is OSMesa" >&5
 $as_echo "$as_me: WARNING: Disabling GLw since the driver is OSMesa" >&2;}
     enable_glw=no
 fi
 # Check whether --enable-motif was given.
-if test "${enable_motif+set}" = set; then
+if test "${enable_motif+set}" = set; then :
   enableval=$enable_motif; enable_motif="$enableval"
 else
   enable_motif=no
@@ -9318,40 +7599,44 @@ if test "x$enable_glw" = xyes; then
     if test "$x11_pkgconfig" = yes; then
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for GLW" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLW" >&5
 $as_echo_n "checking for GLW... " >&6; }
 
-if test -n "$GLW_CFLAGS"; then
-    pkg_cv_GLW_CFLAGS="$GLW_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xt\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLW_CFLAGS"; then
+        pkg_cv_GLW_CFLAGS="$GLW_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xt\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xt") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLW_CFLAGS=`$PKG_CONFIG --cflags "x11 xt" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$GLW_LIBS"; then
-    pkg_cv_GLW_LIBS="$GLW_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xt\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLW_LIBS"; then
+        pkg_cv_GLW_LIBS="$GLW_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xt\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xt") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLW_LIBS=`$PKG_CONFIG --libs "x11 xt" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -9364,25 +7649,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        GLW_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "x11 xt" 2>&1`
+	        GLW_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "x11 xt"`
         else
-	        GLW_PKG_ERRORS=`$PKG_CONFIG --print-errors "x11 xt" 2>&1`
+	        GLW_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11 xt"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$GLW_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (x11 xt) were not met:
-
-$GLW_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables GLW_CFLAGS
-and GLW_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (x11 xt) were not met:
+	as_fn_error "Package requirements (x11 xt) were not met:
 
 $GLW_PKG_ERRORS
 
@@ -9392,22 +7666,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables GLW_CFLAGS
 and GLW_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables GLW_CFLAGS
-and GLW_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -9416,12 +7679,11 @@ and GLW_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	GLW_CFLAGS=$pkg_cv_GLW_CFLAGS
 	GLW_LIBS=$pkg_cv_GLW_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -9440,9 +7702,9 @@ fi
         GLW_SOURCES="$GLW_SOURCES GLwMDrawA.c"
         # Extract the first word of "motif-config", so it can be a program name with args.
 set dummy motif-config; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_MOTIF_CONFIG+set}" = set; then
+if test "${ac_cv_path_MOTIF_CONFIG+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   case $MOTIF_CONFIG in
@@ -9455,14 +7717,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
   if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
     ac_cv_path_MOTIF_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   test -z "$ac_cv_path_MOTIF_CONFIG" && ac_cv_path_MOTIF_CONFIG="no"
@@ -9471,10 +7733,10 @@ esac
 fi
 MOTIF_CONFIG=$ac_cv_path_MOTIF_CONFIG
 if test -n "$MOTIF_CONFIG"; then
-  { $as_echo "$as_me:$LINENO: result: $MOTIF_CONFIG" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MOTIF_CONFIG" >&5
 $as_echo "$MOTIF_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -9483,159 +7745,22 @@ fi
             MOTIF_CFLAGS=`$MOTIF_CONFIG --cflags`
             MOTIF_LIBS=`$MOTIF_CONFIG --libs`
         else
-            if test "${ac_cv_header_Xm_PrimitiveP_h+set}" = set; then
-  { $as_echo "$as_me:$LINENO: checking for Xm/PrimitiveP.h" >&5
-$as_echo_n "checking for Xm/PrimitiveP.h... " >&6; }
-if test "${ac_cv_header_Xm_PrimitiveP_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_Xm_PrimitiveP_h" >&5
-$as_echo "$ac_cv_header_Xm_PrimitiveP_h" >&6; }
-else
-  # Is the header compilable?
-{ $as_echo "$as_me:$LINENO: checking Xm/PrimitiveP.h usability" >&5
-$as_echo_n "checking Xm/PrimitiveP.h usability... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <Xm/PrimitiveP.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-$as_echo "$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ $as_echo "$as_me:$LINENO: checking Xm/PrimitiveP.h presence" >&5
-$as_echo_n "checking Xm/PrimitiveP.h presence... " >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <Xm/PrimitiveP.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+            ac_fn_c_check_header_mongrel "$LINENO" "Xm/PrimitiveP.h" "ac_cv_header_Xm_PrimitiveP_h" "$ac_includes_default"
+if test "x$ac_cv_header_Xm_PrimitiveP_h" = x""yes; then :
 
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ $as_echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-$as_echo "$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: accepted by the compiler, rejected by the preprocessor!" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: proceeding with the compiler's result" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: present but cannot be compiled" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: present but cannot be compiled" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h:     check for missing prerequisite headers?" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h:     check for missing prerequisite headers?" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: see the Autoconf documentation" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: see the Autoconf documentation" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h:     section \"Present But Cannot Be Compiled\"" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: proceeding with the preprocessor's result" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: proceeding with the preprocessor's result" >&2;}
-    { $as_echo "$as_me:$LINENO: WARNING: Xm/PrimitiveP.h: in the future, the compiler will take precedence" >&5
-$as_echo "$as_me: WARNING: Xm/PrimitiveP.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## ---------------------------------------------------------------------- ##
-## Report this to https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa ##
-## ---------------------------------------------------------------------- ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ $as_echo "$as_me:$LINENO: checking for Xm/PrimitiveP.h" >&5
-$as_echo_n "checking for Xm/PrimitiveP.h... " >&6; }
-if test "${ac_cv_header_Xm_PrimitiveP_h+set}" = set; then
-  $as_echo_n "(cached) " >&6
 else
-  ac_cv_header_Xm_PrimitiveP_h=$ac_header_preproc
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_Xm_PrimitiveP_h" >&5
-$as_echo "$ac_cv_header_Xm_PrimitiveP_h" >&6; }
-
-fi
-if test "x$ac_cv_header_Xm_PrimitiveP_h" = x""yes; then
-  :
-else
-  { { $as_echo "$as_me:$LINENO: error: Can't locate Motif headers" >&5
-$as_echo "$as_me: error: Can't locate Motif headers" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "Can't locate Motif headers" "$LINENO" 5
 fi
 
 
-            { $as_echo "$as_me:$LINENO: checking for XmGetPixmap in -lXm" >&5
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XmGetPixmap in -lXm" >&5
 $as_echo_n "checking for XmGetPixmap in -lXm... " >&6; }
-if test "${ac_cv_lib_Xm_XmGetPixmap+set}" = set; then
+if test "${ac_cv_lib_Xm_XmGetPixmap+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lXm  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
@@ -9653,48 +7778,21 @@ return XmGetPixmap ();
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   ac_cv_lib_Xm_XmGetPixmap=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_lib_Xm_XmGetPixmap=no
+  ac_cv_lib_Xm_XmGetPixmap=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_lib_Xm_XmGetPixmap" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xm_XmGetPixmap" >&5
 $as_echo "$ac_cv_lib_Xm_XmGetPixmap" >&6; }
-if test "x$ac_cv_lib_Xm_XmGetPixmap" = x""yes; then
+if test "x$ac_cv_lib_Xm_XmGetPixmap" = x""yes; then :
   MOTIF_LIBS="-lXm"
 else
-  { { $as_echo "$as_me:$LINENO: error: Can't locate Motif Xm library" >&5
-$as_echo "$as_me: error: Can't locate Motif Xm library" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "Can't locate Motif Xm library" "$LINENO" 5
 fi
 
         fi
@@ -9729,7 +7827,7 @@ else
     default_glut=no
 fi
 # Check whether --enable-glut was given.
-if test "${enable_glut+set}" = set; then
+if test "${enable_glut+set}" = set; then :
   enableval=$enable_glut; enable_glut="$enableval"
 else
   enable_glut="$default_glut"
@@ -9737,12 +7835,12 @@ fi
 
 
 if test "x$enable_glu$enable_glut" = xnoyes; then
-    { $as_echo "$as_me:$LINENO: WARNING: Disabling glut since GLU is disabled" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Disabling glut since GLU is disabled" >&5
 $as_echo "$as_me: WARNING: Disabling glut since GLU is disabled" >&2;}
     enable_glut=no
 fi
 if test "x$enable_glut" = xyes && test "$mesa_driver" = osmesa; then
-    { $as_echo "$as_me:$LINENO: WARNING: Disabling glut since the driver is OSMesa" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Disabling glut since the driver is OSMesa" >&5
 $as_echo "$as_me: WARNING: Disabling glut since the driver is OSMesa" >&2;}
     enable_glut=no
 fi
@@ -9756,40 +7854,44 @@ if test "x$enable_glut" = xyes; then
     if test "$x11_pkgconfig" = yes; then
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for GLUT" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLUT" >&5
 $as_echo_n "checking for GLUT... " >&6; }
 
-if test -n "$GLUT_CFLAGS"; then
-    pkg_cv_GLUT_CFLAGS="$GLUT_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xmu xi\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLUT_CFLAGS"; then
+        pkg_cv_GLUT_CFLAGS="$GLUT_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xmu xi\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xmu xi") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLUT_CFLAGS=`$PKG_CONFIG --cflags "x11 xmu xi" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$GLUT_LIBS"; then
-    pkg_cv_GLUT_LIBS="$GLUT_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xmu xi\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$GLUT_LIBS"; then
+        pkg_cv_GLUT_LIBS="$GLUT_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"x11 xmu xi\""; } >&5
   ($PKG_CONFIG --exists --print-errors "x11 xmu xi") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_GLUT_LIBS=`$PKG_CONFIG --libs "x11 xmu xi" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -9802,25 +7904,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        GLUT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "x11 xmu xi" 2>&1`
+	        GLUT_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "x11 xmu xi"`
         else
-	        GLUT_PKG_ERRORS=`$PKG_CONFIG --print-errors "x11 xmu xi" 2>&1`
+	        GLUT_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11 xmu xi"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$GLUT_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (x11 xmu xi) were not met:
-
-$GLUT_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables GLUT_CFLAGS
-and GLUT_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (x11 xmu xi) were not met:
+	as_fn_error "Package requirements (x11 xmu xi) were not met:
 
 $GLUT_PKG_ERRORS
 
@@ -9830,22 +7921,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables GLUT_CFLAGS
 and GLUT_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables GLUT_CFLAGS
-and GLUT_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -9854,12 +7934,11 @@ and GLUT_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	GLUT_CFLAGS=$pkg_cv_GLUT_CFLAGS
 	GLUT_LIBS=$pkg_cv_GLUT_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -9912,7 +7991,7 @@ fi
 
 
 # Check whether --enable-gallium was given.
-if test "${enable_gallium+set}" = set; then
+if test "${enable_gallium+set}" = set; then :
   enableval=$enable_gallium; enable_gallium="$enableval"
 else
   enable_gallium=yes
@@ -9924,7 +8003,7 @@ fi
 
 
 # Check whether --with-state-trackers was given.
-if test "${with_state_trackers+set}" = set; then
+if test "${with_state_trackers+set}" = set; then :
   withval=$with_state_trackers; with_state_trackers="$withval"
 else
   with_state_trackers=yes
@@ -9949,40 +8028,44 @@ yes)
         # Have only tested st/xorg on 1.6.0 servers
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for XORG" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for XORG" >&5
 $as_echo_n "checking for XORG... " >&6; }
 
-if test -n "$XORG_CFLAGS"; then
-    pkg_cv_XORG_CFLAGS="$XORG_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xorg-server >= 1.6.0 libdrm >= \$LIBDRM_XORG_REQUIRED libkms >= \$LIBKMS_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XORG_CFLAGS"; then
+        pkg_cv_XORG_CFLAGS="$XORG_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xorg-server >= 1.6.0 libdrm >= \$LIBDRM_XORG_REQUIRED libkms >= \$LIBKMS_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XORG_CFLAGS=`$PKG_CONFIG --cflags "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$XORG_LIBS"; then
-    pkg_cv_XORG_LIBS="$XORG_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xorg-server >= 1.6.0 libdrm >= \$LIBDRM_XORG_REQUIRED libkms >= \$LIBKMS_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XORG_LIBS"; then
+        pkg_cv_XORG_LIBS="$XORG_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xorg-server >= 1.6.0 libdrm >= \$LIBDRM_XORG_REQUIRED libkms >= \$LIBKMS_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XORG_LIBS=`$PKG_CONFIG --libs "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -9995,14 +8078,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED" 2>&1`
+	        XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED"`
         else
-	        XORG_PKG_ERRORS=`$PKG_CONFIG --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED" 2>&1`
+	        XORG_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$XORG_PKG_ERRORS" >&5
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
                 HAVE_XORG="no"
 elif test $pkg_failed = untried; then
@@ -10010,7 +8093,7 @@ elif test $pkg_failed = untried; then
 else
 	XORG_CFLAGS=$pkg_cv_XORG_CFLAGS
 	XORG_LIBS=$pkg_cv_XORG_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	HAVE_XORG="yes"; GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS xorg"
 fi
@@ -10022,55 +8105,55 @@ fi
     state_trackers=`IFS=', '; echo $with_state_trackers`
     for tracker in $state_trackers; do
         test -d "$srcdir/src/gallium/state_trackers/$tracker" || \
-            { { $as_echo "$as_me:$LINENO: error: state tracker '$tracker' doesn't exist" >&5
-$as_echo "$as_me: error: state tracker '$tracker' doesn't exist" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "state tracker '$tracker' doesn't exist" "$LINENO" 5
 
         case "$tracker" in
         egl)
             if test "x$enable_egl" != xyes; then
-                { { $as_echo "$as_me:$LINENO: error: cannot build egl state tracker without EGL library" >&5
-$as_echo "$as_me: error: cannot build egl state tracker without EGL library" >&2;}
-   { (exit 1); exit 1; }; }
+                as_fn_error "cannot build egl state tracker without EGL library" "$LINENO" 5
             fi
             ;;
         xorg)
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for LIBDRM_XORG" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBDRM_XORG" >&5
 $as_echo_n "checking for LIBDRM_XORG... " >&6; }
 
-if test -n "$LIBDRM_XORG_CFLAGS"; then
-    pkg_cv_LIBDRM_XORG_CFLAGS="$LIBDRM_XORG_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_XORG_CFLAGS"; then
+        pkg_cv_LIBDRM_XORG_CFLAGS="$LIBDRM_XORG_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_XORG_CFLAGS=`$PKG_CONFIG --cflags "libdrm >= $LIBDRM_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$LIBDRM_XORG_LIBS"; then
-    pkg_cv_LIBDRM_XORG_LIBS="$LIBDRM_XORG_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBDRM_XORG_LIBS"; then
+        pkg_cv_LIBDRM_XORG_LIBS="$LIBDRM_XORG_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libdrm >= \$LIBDRM_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBDRM_XORG_LIBS=`$PKG_CONFIG --libs "libdrm >= $LIBDRM_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -10083,25 +8166,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        LIBDRM_XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED" 2>&1`
+	        LIBDRM_XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED"`
         else
-	        LIBDRM_XORG_PKG_ERRORS=`$PKG_CONFIG --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED" 2>&1`
+	        LIBDRM_XORG_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libdrm >= $LIBDRM_XORG_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$LIBDRM_XORG_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (libdrm >= $LIBDRM_XORG_REQUIRED) were not met:
-
-$LIBDRM_XORG_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables LIBDRM_XORG_CFLAGS
-and LIBDRM_XORG_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (libdrm >= $LIBDRM_XORG_REQUIRED) were not met:
+	as_fn_error "Package requirements (libdrm >= $LIBDRM_XORG_REQUIRED) were not met:
 
 $LIBDRM_XORG_PKG_ERRORS
 
@@ -10111,22 +8183,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables LIBDRM_XORG_CFLAGS
 and LIBDRM_XORG_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables LIBDRM_XORG_CFLAGS
-and LIBDRM_XORG_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -10135,51 +8196,54 @@ and LIBDRM_XORG_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	LIBDRM_XORG_CFLAGS=$pkg_cv_LIBDRM_XORG_CFLAGS
 	LIBDRM_XORG_LIBS=$pkg_cv_LIBDRM_XORG_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for LIBKMS_XORG" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBKMS_XORG" >&5
 $as_echo_n "checking for LIBKMS_XORG... " >&6; }
 
-if test -n "$LIBKMS_XORG_CFLAGS"; then
-    pkg_cv_LIBKMS_XORG_CFLAGS="$LIBKMS_XORG_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libkms >= \$LIBKMS_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBKMS_XORG_CFLAGS"; then
+        pkg_cv_LIBKMS_XORG_CFLAGS="$LIBKMS_XORG_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libkms >= \$LIBKMS_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libkms >= $LIBKMS_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBKMS_XORG_CFLAGS=`$PKG_CONFIG --cflags "libkms >= $LIBKMS_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$LIBKMS_XORG_LIBS"; then
-    pkg_cv_LIBKMS_XORG_LIBS="$LIBKMS_XORG_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libkms >= \$LIBKMS_XORG_REQUIRED\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$LIBKMS_XORG_LIBS"; then
+        pkg_cv_LIBKMS_XORG_LIBS="$LIBKMS_XORG_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libkms >= \$LIBKMS_XORG_REQUIRED\""; } >&5
   ($PKG_CONFIG --exists --print-errors "libkms >= $LIBKMS_XORG_REQUIRED") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_LIBKMS_XORG_LIBS=`$PKG_CONFIG --libs "libkms >= $LIBKMS_XORG_REQUIRED" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -10192,25 +8256,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        LIBKMS_XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libkms >= $LIBKMS_XORG_REQUIRED" 2>&1`
+	        LIBKMS_XORG_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libkms >= $LIBKMS_XORG_REQUIRED"`
         else
-	        LIBKMS_XORG_PKG_ERRORS=`$PKG_CONFIG --print-errors "libkms >= $LIBKMS_XORG_REQUIRED" 2>&1`
+	        LIBKMS_XORG_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libkms >= $LIBKMS_XORG_REQUIRED"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$LIBKMS_XORG_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (libkms >= $LIBKMS_XORG_REQUIRED) were not met:
-
-$LIBKMS_XORG_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables LIBKMS_XORG_CFLAGS
-and LIBKMS_XORG_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (libkms >= $LIBKMS_XORG_REQUIRED) were not met:
+	as_fn_error "Package requirements (libkms >= $LIBKMS_XORG_REQUIRED) were not met:
 
 $LIBKMS_XORG_PKG_ERRORS
 
@@ -10220,22 +8273,11 @@ installed software in a non-standard prefix.
 Alternatively, you may set the environment variables LIBKMS_XORG_CFLAGS
 and LIBKMS_XORG_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+" "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: in \`$ac_pwd':" >&5
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables LIBKMS_XORG_CFLAGS
-and LIBKMS_XORG_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+as_fn_error "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -10244,12 +8286,11 @@ and LIBKMS_XORG_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }; }
+See \`config.log' for more details." "$LINENO" 5; }
 else
 	LIBKMS_XORG_CFLAGS=$pkg_cv_LIBKMS_XORG_CFLAGS
 	LIBKMS_XORG_LIBS=$pkg_cv_LIBKMS_XORG_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	:
 fi
@@ -10268,40 +8309,44 @@ esac
 if test "x$HAVE_XORG" = xyes; then
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for XEXT" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for XEXT" >&5
 $as_echo_n "checking for XEXT... " >&6; }
 
-if test -n "$XEXT_CFLAGS"; then
-    pkg_cv_XEXT_CFLAGS="$XEXT_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xextproto >= 7.0.99.1\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XEXT_CFLAGS"; then
+        pkg_cv_XEXT_CFLAGS="$XEXT_CFLAGS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xextproto >= 7.0.99.1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "xextproto >= 7.0.99.1") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XEXT_CFLAGS=`$PKG_CONFIG --cflags "xextproto >= 7.0.99.1" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
-if test -n "$XEXT_LIBS"; then
-    pkg_cv_XEXT_LIBS="$XEXT_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xextproto >= 7.0.99.1\"") >&5
+if test -n "$PKG_CONFIG"; then
+    if test -n "$XEXT_LIBS"; then
+        pkg_cv_XEXT_LIBS="$XEXT_LIBS"
+    else
+        if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xextproto >= 7.0.99.1\""; } >&5
   ($PKG_CONFIG --exists --print-errors "xextproto >= 7.0.99.1") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
   pkg_cv_XEXT_LIBS=`$PKG_CONFIG --libs "xextproto >= 7.0.99.1" 2>/dev/null`
 else
   pkg_failed=yes
 fi
- else
-    pkg_failed=untried
+    fi
+else
+	pkg_failed=untried
 fi
 
 
@@ -10314,14 +8359,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        XEXT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "xextproto >= 7.0.99.1" 2>&1`
+	        XEXT_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "xextproto >= 7.0.99.1"`
         else
-	        XEXT_PKG_ERRORS=`$PKG_CONFIG --print-errors "xextproto >= 7.0.99.1" 2>&1`
+	        XEXT_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "xextproto >= 7.0.99.1"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$XEXT_PKG_ERRORS" >&5
 
-	{ $as_echo "$as_me:$LINENO: result: no" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
                 HAVE_XEXTPROTO_71="no"
 elif test $pkg_failed = untried; then
@@ -10329,7 +8374,7 @@ elif test $pkg_failed = untried; then
 else
 	XEXT_CFLAGS=$pkg_cv_XEXT_CFLAGS
 	XEXT_LIBS=$pkg_cv_XEXT_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	HAVE_XEXTPROTO_71="yes"; DEFINES="$DEFINES -DHAVE_XEXTPROTO_71"
 fi
@@ -10337,7 +8382,7 @@ fi
 
 
 # Check whether --with-egl-displays was given.
-if test "${with_egl_displays+set}" = set; then
+if test "${with_egl_displays+set}" = set; then :
   withval=$with_egl_displays; with_egl_displays="$withval"
 else
   with_egl_displays=yes
@@ -10353,17 +8398,13 @@ yes)
     ;;
 *)
     if test "x$enable_egl" != xyes; then
-        { { $as_echo "$as_me:$LINENO: error: cannot build egl state tracker without EGL library" >&5
-$as_echo "$as_me: error: cannot build egl state tracker without EGL library" >&2;}
-   { (exit 1); exit 1; }; }
+        as_fn_error "cannot build egl state tracker without EGL library" "$LINENO" 5
     fi
     # verify the requested driver directories exist
     egl_displays=`IFS=', '; echo $with_egl_displays`
     for dpy in $egl_displays; do
         test -d "$srcdir/src/gallium/state_trackers/egl/$dpy" || \
-            { { $as_echo "$as_me:$LINENO: error: EGL display '$dpy' does't exist" >&5
-$as_echo "$as_me: error: EGL display '$dpy' does't exist" >&2;}
-   { (exit 1); exit 1; }; }
+            as_fn_error "EGL display '$dpy' does't exist" "$LINENO" 5
     done
     EGL_DISPLAYS="$egl_displays"
     ;;
@@ -10372,7 +8413,7 @@ esac
 
 
 # Check whether --with-egl-driver-dir was given.
-if test "${with_egl_driver_dir+set}" = set; then
+if test "${with_egl_driver_dir+set}" = set; then :
   withval=$with_egl_driver_dir; EGL_DRIVER_INSTALL_DIR="$withval"
 else
   EGL_DRIVER_INSTALL_DIR='${libdir}/egl'
@@ -10382,7 +8423,7 @@ fi
 
 
 # Check whether --with-xorg-driver-dir was given.
-if test "${with_xorg_driver_dir+set}" = set; then
+if test "${with_xorg_driver_dir+set}" = set; then :
   withval=$with_xorg_driver_dir; XORG_DRIVER_INSTALL_DIR="$withval"
 else
   XORG_DRIVER_INSTALL_DIR="${libdir}/xorg/modules/drivers"
@@ -10392,31 +8433,29 @@ fi
 
 
 # Check whether --with-max-width was given.
-if test "${with_max_width+set}" = set; then
+if test "${with_max_width+set}" = set; then :
   withval=$with_max_width; DEFINES="${DEFINES} -DMAX_WIDTH=${withval}";
-     if test "${withval}" -gt "4096"; then
-  { $as_echo "$as_me:$LINENO: WARNING: Large framebuffer: see s_tritemp.h comments." >&5
+     if test "${withval}" -gt "4096"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Large framebuffer: see s_tritemp.h comments." >&5
 $as_echo "$as_me: WARNING: Large framebuffer: see s_tritemp.h comments." >&2;}
 fi
 
-
 fi
 
 
 # Check whether --with-max-height was given.
-if test "${with_max_height+set}" = set; then
+if test "${with_max_height+set}" = set; then :
   withval=$with_max_height; DEFINES="${DEFINES} -DMAX_HEIGHT=${withval}";
-     if test "${withval}" -gt "4096"; then
-  { $as_echo "$as_me:$LINENO: WARNING: Large framebuffer: see s_tritemp.h comments." >&5
+     if test "${withval}" -gt "4096"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Large framebuffer: see s_tritemp.h comments." >&5
 $as_echo "$as_me: WARNING: Large framebuffer: see s_tritemp.h comments." >&2;}
 fi
 
-
 fi
 
 
 # Check whether --enable-gallium-svga was given.
-if test "${enable_gallium_svga+set}" = set; then
+if test "${enable_gallium_svga+set}" = set; then :
   enableval=$enable_gallium_svga; enable_gallium_svga="$enableval"
 else
   enable_gallium_svga=auto
@@ -10430,7 +8469,7 @@ elif test "x$enable_gallium_svga" = xauto; then
 fi
 
 # Check whether --enable-gallium-intel was given.
-if test "${enable_gallium_intel+set}" = set; then
+if test "${enable_gallium_intel+set}" = set; then :
   enableval=$enable_gallium_intel; enable_gallium_intel="$enableval"
 else
   enable_gallium_intel=auto
@@ -10444,7 +8483,7 @@ elif test "x$enable_gallium_intel" = xauto; then
 fi
 
 # Check whether --enable-gallium-radeon was given.
-if test "${enable_gallium_radeon+set}" = set; then
+if test "${enable_gallium_radeon+set}" = set; then :
   enableval=$enable_gallium_radeon; enable_gallium_radeon="$enableval"
 else
   enable_gallium_radeon=auto
@@ -10458,7 +8497,7 @@ elif test "x$enable_gallium_radeon" = xauto; then
 fi
 
 # Check whether --enable-gallium-nouveau was given.
-if test "${enable_gallium_nouveau+set}" = set; then
+if test "${enable_gallium_nouveau+set}" = set; then :
   enableval=$enable_gallium_nouveau; enable_gallium_nouveau="$enableval"
 else
   enable_gallium_nouveau=no
@@ -10470,7 +8509,7 @@ if test "x$enable_gallium_nouveau" = xyes; then
 fi
 
 # Check whether --enable-gallium-swrast was given.
-if test "${enable_gallium_swrast+set}" = set; then
+if test "${enable_gallium_swrast+set}" = set; then :
   enableval=$enable_gallium_swrast; enable_gallium_swrast="$enableval"
 else
   enable_gallium_swrast=auto
@@ -10518,13 +8557,13 @@ _ACEOF
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:$LINENO: WARNING: cache variable $ac_var contains a newline" >&5
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) $as_unset $ac_var ;;
+      *) { eval $ac_var=; unset $ac_var;} ;;
       esac ;;
     esac
   done
@@ -10532,8 +8571,8 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes (double-quote
-      # substitution turns \\\\ into \\, and sed turns \\ into \).
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
@@ -10556,11 +8595,11 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     test "x$cache_file" != "x/dev/null" &&
-      { $as_echo "$as_me:$LINENO: updating cache $cache_file" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
 $as_echo "$as_me: updating cache $cache_file" >&6;}
     cat confcache >$cache_file
   else
-    { $as_echo "$as_me:$LINENO: not updating unwritable cache $cache_file" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
@@ -10616,8 +8655,8 @@ for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
-  ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
-  ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
 done
 LIBOBJS=$ac_libobjs
 
@@ -10629,9 +8668,10 @@ LTLIBOBJS=$ac_ltlibobjs
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
 $as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
-cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
 # Generated by $as_me.
 # Run this file to recreate the current configuration.
@@ -10641,17 +8681,18 @@ cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 debug=false
 ac_cs_recheck=false
 ac_cs_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -10659,23 +8700,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -10683,7 +8716,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -10694,7 +8733,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -10717,13 +8756,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -10733,15 +8765,15 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -10753,12 +8785,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -10770,7 +8806,89 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with status $?, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  fi
+  $as_echo "$as_me: error: $1" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
 if expr a : '\(a\)' >/dev/null 2>&1 &&
    test "X`expr 00001 : '.*\(...\)'`" = X001; then
   as_expr=expr
@@ -10784,8 +8902,12 @@ else
   as_basename=false
 fi
 
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
 
-# Name of the executable.
 as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
@@ -10805,76 +8927,25 @@ $as_echo X/"$0" |
 	  }
 	  s/.*/./; q'`
 
-# CDPATH.
-$as_unset CDPATH
-
-
-
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
-
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
 ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
+case `echo -n x` in #(((((
 -n*)
-  case `echo 'x\c'` in
+  case `echo 'xy\c'` in
   *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
   esac;;
 *)
   ECHO_N='-n';;
 esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
 
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
@@ -10903,8 +8974,56 @@ fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
 
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
 if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
+  as_mkdir_p='mkdir -p "$as_dir"'
 else
   test -d ./-p && rmdir ./-p
   as_mkdir_p=false
@@ -10923,10 +9042,10 @@ else
       if test -d "$1"; then
 	test -d "$1/.";
       else
-	case $1 in
+	case $1 in #(
 	-*)set "./$1";;
 	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
 	???[sx]*):;;*)false;;esac;fi
     '\'' sh
   '
@@ -10941,13 +9060,19 @@ as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
 exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
 
-# Save the log message, to keep $[0] and so on meaningful, and to
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by Mesa $as_me 7.8.0, which was
-generated by GNU Autoconf 2.63.  Invocation command line was
+This file was extended by Mesa $as_me 7.8.1, which was
+generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -10975,13 +9100,15 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files from templates according to the
-current configuration.
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
 
-Usage: $0 [OPTION]... [FILE]...
+Usage: $0 [OPTION]... [TAG]...
 
   -h, --help       print this help, then exit
   -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
   -q, --quiet, --silent
                    do not print progress messages
   -d, --debug      don't remove temporary files
@@ -10995,16 +9122,17 @@ $config_files
 Configuration commands:
 $config_commands
 
-Report bugs to <bug-autoconf@gnu.org>."
+Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa>."
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-Mesa config.status 7.8.0
-configured by $0, generated by GNU Autoconf 2.63,
-  with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
+Mesa config.status 7.8.1
+configured by $0, generated by GNU Autoconf 2.65,
+  with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2008 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -11038,6 +9166,8 @@ do
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
     $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
@@ -11045,7 +9175,7 @@ do
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
-    CONFIG_FILES="$CONFIG_FILES '$ac_optarg'"
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h |  --help | --hel | -h )
     $as_echo "$ac_cs_usage"; exit ;;
@@ -11054,11 +9184,10 @@ do
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) { $as_echo "$as_me: error: unrecognized option: $1
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; } ;;
+  -*) as_fn_error "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
 
-  *) ac_config_targets="$ac_config_targets $1"
+  *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
 
   esac
@@ -11107,9 +9236,7 @@ do
     "configs/autoconf") CONFIG_FILES="$CONFIG_FILES configs/autoconf" ;;
     "configs") CONFIG_COMMANDS="$CONFIG_COMMANDS configs" ;;
 
-  *) { { $as_echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
-$as_echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
-   { (exit 1); exit 1; }; };;
+  *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -11135,7 +9262,7 @@ $debug ||
   trap 'exit_status=$?
   { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
 ' 0
-  trap '{ (exit 1); exit 1; }' 1 2 13 15
+  trap 'as_fn_exit 1' 1 2 13 15
 }
 # Create a (secure) tmp directory for tmp files.
 
@@ -11146,11 +9273,7 @@ $debug ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
-} ||
-{
-   $as_echo "$as_me: cannot create a temporary directory in ." >&2
-   { (exit 1); exit 1; }
-}
+} || as_fn_error "cannot create a temporary directory in ." "$LINENO" 5
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -11158,10 +9281,16 @@ $debug ||
 if test -n "$CONFIG_FILES"; then
 
 
-ac_cr='
'
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
 ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
 if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\\r'
+  ac_cs_awk_cr='\r'
 else
   ac_cs_awk_cr=$ac_cr
 fi
@@ -11175,24 +9304,18 @@ _ACEOF
   echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
   echo "_ACEOF"
 } >conf$$subs.sh ||
-  { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
 ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
 
   ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -11214,7 +9337,7 @@ s/'"$ac_delim"'$//
 t delim
 :nl
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more1
 s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
 p
@@ -11228,7 +9351,7 @@ s/.\{148\}//
 t nl
 :delim
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more2
 s/["\\]/\\&/g; s/^/"/; s/$/"/
 p
@@ -11281,9 +9404,7 @@ if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
 else
   cat
 fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || { { $as_echo "$as_me:$LINENO: error: could not setup config files machinery" >&5
-$as_echo "$as_me: error: could not setup config files machinery" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
 # VPATH may cause trouble with some makes, so we remove $(srcdir),
@@ -11314,9 +9435,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) { { $as_echo "$as_me:$LINENO: error: invalid tag $ac_tag" >&5
-$as_echo "$as_me: error: invalid tag $ac_tag" >&2;}
-   { (exit 1); exit 1; }; };;
+  :L* | :C*:*) as_fn_error "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -11344,12 +9463,10 @@ $as_echo "$as_me: error: invalid tag $ac_tag" >&2;}
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   { { $as_echo "$as_me:$LINENO: error: cannot find input file: $ac_f" >&5
-$as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
-   { (exit 1); exit 1; }; };;
+	   as_fn_error "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      ac_file_inputs="$ac_file_inputs '$ac_f'"
+      as_fn_append ac_file_inputs " '$ac_f'"
     done
 
     # Let's still pretend it is `configure' which instantiates (i.e., don't
@@ -11360,7 +9477,7 @@ $as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:$LINENO: creating $ac_file" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
 $as_echo "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
@@ -11373,9 +9490,7 @@ $as_echo "$as_me: creating $ac_file" >&6;}
 
     case $ac_tag in
     *:-:* | *:-) cat >"$tmp/stdin" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; } ;;
+      || as_fn_error "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -11403,47 +9518,7 @@ $as_echo X"$ac_file" |
 	    q
 	  }
 	  s/.*/./; q'`
-  { as_dir="$ac_dir"
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || { { $as_echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-$as_echo "$as_me: error: cannot create directory $as_dir" >&2;}
-   { (exit 1); exit 1; }; }; }
+  as_dir="$ac_dir"; as_fn_mkdir_p
   ac_builddir=.
 
 case "$ac_dir" in
@@ -11495,7 +9570,6 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # If the template does not know about datarootdir, expand it.
 # FIXME: This hack should be removed a few years after 2.60.
 ac_datarootdir_hack=; ac_datarootdir_seen=
-
 ac_sed_dataroot='
 /datarootdir/ {
   p
@@ -11505,12 +9579,11 @@ ac_sed_dataroot='
 /@docdir@/p
 /@infodir@/p
 /@localedir@/p
-/@mandir@/p
-'
+/@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -11520,7 +9593,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@infodir@&$infodir&g
   s&@localedir@&$localedir&g
   s&@mandir@&$mandir&g
-    s&\\\${datarootdir}&$datarootdir&g' ;;
+  s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
 _ACEOF
 
@@ -11548,14 +9621,12 @@ s&@INSTALL@&$ac_INSTALL&;t t
 $ac_datarootdir_hack
 "
 eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined." >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined." >&2;}
@@ -11565,13 +9636,11 @@ which seems to be undefined.  Please make sure it is defined." >&2;}
   -) cat "$tmp/out" && rm -f "$tmp/out";;
   *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
   esac \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
  ;;
 
 
-  :C)  { $as_echo "$as_me:$LINENO: executing $ac_file commands" >&5
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
 $as_echo "$as_me: executing $ac_file commands" >&6;}
  ;;
   esac
@@ -11589,15 +9658,12 @@ ln -s autoconf configs/current
 done # for ac_tag
 
 
-{ (exit 0); exit 0; }
+as_fn_exit 0
 _ACEOF
-chmod +x $CONFIG_STATUS
 ac_clean_files=$ac_clean_files_save
 
 test $ac_write_fail = 0 ||
-  { { $as_echo "$as_me:$LINENO: error: write failure creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: write failure creating $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error "write failure creating $CONFIG_STATUS" "$LINENO" 5
 
 
 # configure is writing to config.log, and then calls config.status.
@@ -11618,10 +9684,10 @@ if test "$no_create" != yes; then
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
-  $ac_cs_success || { (exit 1); exit 1; }
+  $ac_cs_success || as_fn_exit $?
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:$LINENO: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
diff --git a/mesalib/docs/news.html b/mesalib/docs/news.html
index a60d7a87d..b7731cdaf 100644
--- a/mesalib/docs/news.html
+++ b/mesalib/docs/news.html
@@ -11,7 +11,15 @@
 <H1>News</H1>
 
 
-<h2>March 26, 2010</h2>
+<h2>April 5, 2010</h2>
+
+<p>
+<a href="relnotes-7.8.1.html">Mesa 7.8.1</a> is released.  This is a bug-fix
+release for a few critical issues in the 7.8 release.
+</p>
+
+
+<h2>March 28, 2010</h2>
 <p>
 <a href="relnotes-7.7.1.html">Mesa 7.7.1</a> is released.  This is a bug-fix
 release fixing issues found in the 7.7 release.
diff --git a/mesalib/docs/relnotes-7.8.1.html b/mesalib/docs/relnotes-7.8.1.html
new file mode 100644
index 000000000..8ec34a38c
--- /dev/null
+++ b/mesalib/docs/relnotes-7.8.1.html
@@ -0,0 +1,62 @@
+<HTML>
+
+<TITLE>Mesa Release Notes</TITLE>
+
+<head><link rel="stylesheet" type="text/css" href="mesa.css"></head>
+
+<BODY>
+
+<body bgcolor="#eeeeee">
+
+<H1>Mesa 7.8.1 Release Notes / April, 5, 2010</H1>
+
+<p>
+Mesa 7.8.1 fixes a couple critical bugs in the recent Mesa 7.8 release.  Even
+though this is a bug fix release, given its proximity to the 7.8 release, a
+new development release, it should also be considered new development release.
+People who are concerned with stability and reliability should stick
+with a previous release, such as 7.7.1, or wait for Mesa 7.8.2.
+</p>
+<p>
+Mesa 7.8.1 implements the OpenGL 2.1 API, but the version reported by
+glGetString(GL_VERSION) depends on the particular driver being used.
+Some drivers don't support all the features required in OpenGL 2.1.
+</p>
+<p>
+See the <a href="install.html">Compiling/Installing page</a> for prerequisites
+for DRI hardware acceleration.
+</p>
+
+
+<h2>MD5 checksums</h2>
+<pre>
+b6db4bf400706ad5cbbae3b4286f5a44  MesaLib-7.8.1.tar.gz
+bb0acf866166093991bf18f7bff5063a  MesaLib-7.8.1.tar.bz2
+b54f18f807e0804983e39e0fbad07135  MesaLib-7.8.1.zip
+5c43de94ac20099d8b973ca59ea71a8e  MesaDemos-7.8.1.tar.gz
+9ef47f911869657c6bf2f43ebce86b61  MesaDemos-7.8.1.tar.bz2
+93720605eb3f784f9bcc289a4dd2ff52  MesaDemos-7.8.1.zip
+f26ea88429abf29e701ff4e517f17677  MesaGLUT-7.8.1.tar.gz
+7fbc77f2b56d4428f4da37640a00027a  MesaGLUT-7.8.1.tar.bz2
+4066ebfc962a3befadd631910356c64a  MesaGLUT-7.8.1.zip
+</pre>
+
+
+<h2>New features</h2>
+<p>None.</p>
+
+
+<h2>Bug fixes</h2>
+<ul>
+<li>Fix incorrect enums for GLX_INTEL_swap_event by updating glxext.h to
+  version 27 from OpenGL.org.</li>
+<li>Fix compilation errors on non-GLX_DIRECT_RENDERING builds.</li>
+<li>Various fixes for building Mesa on OS X.</li>
+<li>Pass GLX drawable ID to dri2InvalidateBuffers.  Fixes bug #27190.</li>
+</ul>
+
+
+<h2>Changes</h2>
+<p>None.</p>
+</body>
+</html>
diff --git a/mesalib/docs/relnotes-7.8.html b/mesalib/docs/relnotes-7.8.html
index 9622d1665..1fed087d7 100644
--- a/mesalib/docs/relnotes-7.8.html
+++ b/mesalib/docs/relnotes-7.8.html
@@ -28,7 +28,15 @@ for DRI hardware acceleration.
 
 <h2>MD5 checksums</h2>
 <pre>
-tbd
+5fcfde5383eccb3e9fd665f08a0ea59b  MesaLib-7.8.tar.gz
+85cb891eecb89aae4fdd3499cccd934b  MesaLib-7.8.tar.bz2
+754f39593006effc1c8ec3c27c2f1296  MesaLib-7.8.zip
+c3869c29fa6c3dbdd763f7428d271e12  MesaDemos-7.8.tar.gz
+9fe8ec184c7f78691e43c4c0a7f97d56  MesaDemos-7.8.tar.bz2
+063a96947f7b83d4ad789c6cf291b184  MesaDemos-7.8.zip
+5f4246756b7daaddb4fb3f970cad1e28  MesaGLUT-7.8.tar.gz
+ca7048a4aa7a437dcc84cc2c7d731336  MesaGLUT-7.8.tar.bz2
+b54581aeb79b585b158d6a32f94feff2  MesaGLUT-7.8.zip
 </pre>
 
 
diff --git a/mesalib/docs/relnotes.html b/mesalib/docs/relnotes.html
index 3e17a1e94..f7e2c691f 100644
--- a/mesalib/docs/relnotes.html
+++ b/mesalib/docs/relnotes.html
@@ -13,6 +13,7 @@ The release notes summarize what's new or changed in each Mesa release.
 </p>
 
 <UL>
+<LI><A HREF="relnotes-7.8.1.html">7.8.1 release notes</A>
 <LI><A HREF="relnotes-7.8.html">7.8 release notes</A>
 <LI><A HREF="relnotes-7.7.1.html">7.7.1 release notes</A>
 <LI><A HREF="relnotes-7.7.html">7.7 release notes</A>
diff --git a/mesalib/include/GL/glxext.h b/mesalib/include/GL/glxext.h
index 50740dd29..44224308f 100644
--- a/mesalib/include/GL/glxext.h
+++ b/mesalib/include/GL/glxext.h
@@ -6,7 +6,7 @@ extern "C" {
 #endif
 
 /*
-** Copyright (c) 2007-2009 The Khronos Group Inc.
+** Copyright (c) 2007-2010 The Khronos Group Inc.
 ** 
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
@@ -48,9 +48,9 @@ extern "C" {
 /*************************************************************/
 
 /* Header file version number, required by OpenGL ABI for Linux */
-/* glxext.h last updated 2009/10/08 */
+/* glxext.h last updated 2010/02/10 */
 /* Current version at http://www.opengl.org/registry/ */
-#define GLX_GLXEXT_VERSION 25
+#define GLX_GLXEXT_VERSION 27
 
 #ifndef GLX_VERSION_1_3
 #define GLX_WINDOW_BIT                     0x00000001
@@ -396,6 +396,13 @@ extern "C" {
 #ifndef GLX_NV_copy_image
 #endif
 
+#ifndef GLX_INTEL_swap_event
+#define GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK 0x04000000
+#define GLX_EXCHANGE_COMPLETE_INTEL        0x8180
+#define GLX_COPY_COMPLETE_INTEL            0x8181
+#define GLX_FLIP_COMPLETE_INTEL            0x8182
+#endif
+
 
 /*************************************************************/
 
@@ -477,24 +484,24 @@ typedef unsigned __int64 uint64_t;
 #ifndef GLX_VERSION_1_3
 #define GLX_VERSION_1_3 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXFBConfig * glXGetFBConfigs (Display *, int, int *);
-extern GLXFBConfig * glXChooseFBConfig (Display *, int, const int *, int *);
-extern int glXGetFBConfigAttrib (Display *, GLXFBConfig, int, int *);
-extern XVisualInfo * glXGetVisualFromFBConfig (Display *, GLXFBConfig);
-extern GLXWindow glXCreateWindow (Display *, GLXFBConfig, Window, const int *);
-extern void glXDestroyWindow (Display *, GLXWindow);
-extern GLXPixmap glXCreatePixmap (Display *, GLXFBConfig, Pixmap, const int *);
-extern void glXDestroyPixmap (Display *, GLXPixmap);
-extern GLXPbuffer glXCreatePbuffer (Display *, GLXFBConfig, const int *);
-extern void glXDestroyPbuffer (Display *, GLXPbuffer);
-extern void glXQueryDrawable (Display *, GLXDrawable, int, unsigned int *);
-extern GLXContext glXCreateNewContext (Display *, GLXFBConfig, int, GLXContext, Bool);
-extern Bool glXMakeContextCurrent (Display *, GLXDrawable, GLXDrawable, GLXContext);
+extern GLXFBConfig * glXGetFBConfigs (Display *dpy, int screen, int *nelements);
+extern GLXFBConfig * glXChooseFBConfig (Display *dpy, int screen, const int *attrib_list, int *nelements);
+extern int glXGetFBConfigAttrib (Display *dpy, GLXFBConfig config, int attribute, int *value);
+extern XVisualInfo * glXGetVisualFromFBConfig (Display *dpy, GLXFBConfig config);
+extern GLXWindow glXCreateWindow (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
+extern void glXDestroyWindow (Display *dpy, GLXWindow win);
+extern GLXPixmap glXCreatePixmap (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
+extern void glXDestroyPixmap (Display *dpy, GLXPixmap pixmap);
+extern GLXPbuffer glXCreatePbuffer (Display *dpy, GLXFBConfig config, const int *attrib_list);
+extern void glXDestroyPbuffer (Display *dpy, GLXPbuffer pbuf);
+extern void glXQueryDrawable (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
+extern GLXContext glXCreateNewContext (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
+extern Bool glXMakeContextCurrent (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
 extern GLXDrawable glXGetCurrentReadDrawable (void);
 extern Display * glXGetCurrentDisplay (void);
-extern int glXQueryContext (Display *, GLXContext, int, int *);
-extern void glXSelectEvent (Display *, GLXDrawable, unsigned long);
-extern void glXGetSelectedEvent (Display *, GLXDrawable, unsigned long *);
+extern int glXQueryContext (Display *dpy, GLXContext ctx, int attribute, int *value);
+extern void glXSelectEvent (Display *dpy, GLXDrawable draw, unsigned long event_mask);
+extern void glXGetSelectedEvent (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXFBConfig * ( * PFNGLXGETFBCONFIGSPROC) (Display *dpy, int screen, int *nelements);
 typedef GLXFBConfig * ( * PFNGLXCHOOSEFBCONFIGPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
@@ -519,7 +526,7 @@ typedef void ( * PFNGLXGETSELECTEDEVENTPROC) (Display *dpy, GLXDrawable draw, un
 #ifndef GLX_VERSION_1_4
 #define GLX_VERSION_1_4 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern __GLXextFuncPtr glXGetProcAddress (const GLubyte *);
+extern __GLXextFuncPtr glXGetProcAddress (const GLubyte *procName);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef __GLXextFuncPtr ( * PFNGLXGETPROCADDRESSPROC) (const GLubyte *procName);
 #endif
@@ -527,7 +534,7 @@ typedef __GLXextFuncPtr ( * PFNGLXGETPROCADDRESSPROC) (const GLubyte *procName);
 #ifndef GLX_ARB_get_proc_address
 #define GLX_ARB_get_proc_address 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *);
+extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *procName);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef __GLXextFuncPtr ( * PFNGLXGETPROCADDRESSARBPROC) (const GLubyte *procName);
 #endif
@@ -543,7 +550,7 @@ typedef __GLXextFuncPtr ( * PFNGLXGETPROCADDRESSARBPROC) (const GLubyte *procNam
 #ifndef GLX_ARB_create_context
 #define GLX_ARB_create_context 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXContext glXCreateContextAttribsARB (Display *, GLXFBConfig, GLXContext, Bool, const int *);
+extern GLXContext glXCreateContextAttribsARB (Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXContext ( * PFNGLXCREATECONTEXTATTRIBSARBPROC) (Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
 #endif
@@ -563,7 +570,7 @@ typedef GLXContext ( * PFNGLXCREATECONTEXTATTRIBSARBPROC) (Display *dpy, GLXFBCo
 #ifndef GLX_SGI_swap_control
 #define GLX_SGI_swap_control 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXSwapIntervalSGI (int);
+extern int glXSwapIntervalSGI (int interval);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXSWAPINTERVALSGIPROC) (int interval);
 #endif
@@ -571,8 +578,8 @@ typedef int ( * PFNGLXSWAPINTERVALSGIPROC) (int interval);
 #ifndef GLX_SGI_video_sync
 #define GLX_SGI_video_sync 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXGetVideoSyncSGI (unsigned int *);
-extern int glXWaitVideoSyncSGI (int, int, unsigned int *);
+extern int glXGetVideoSyncSGI (unsigned int *count);
+extern int glXWaitVideoSyncSGI (int divisor, int remainder, unsigned int *count);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXGETVIDEOSYNCSGIPROC) (unsigned int *count);
 typedef int ( * PFNGLXWAITVIDEOSYNCSGIPROC) (int divisor, int remainder, unsigned int *count);
@@ -581,7 +588,7 @@ typedef int ( * PFNGLXWAITVIDEOSYNCSGIPROC) (int divisor, int remainder, unsigne
 #ifndef GLX_SGI_make_current_read
 #define GLX_SGI_make_current_read 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXMakeCurrentReadSGI (Display *, GLXDrawable, GLXDrawable, GLXContext);
+extern Bool glXMakeCurrentReadSGI (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
 extern GLXDrawable glXGetCurrentReadDrawableSGI (void);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXMAKECURRENTREADSGIPROC) (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
@@ -592,8 +599,8 @@ typedef GLXDrawable ( * PFNGLXGETCURRENTREADDRAWABLESGIPROC) (void);
 #define GLX_SGIX_video_source 1
 #ifdef _VL_H
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXVideoSourceSGIX glXCreateGLXVideoSourceSGIX (Display *, int, VLServer, VLPath, int, VLNode);
-extern void glXDestroyGLXVideoSourceSGIX (Display *, GLXVideoSourceSGIX);
+extern GLXVideoSourceSGIX glXCreateGLXVideoSourceSGIX (Display *display, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode);
+extern void glXDestroyGLXVideoSourceSGIX (Display *dpy, GLXVideoSourceSGIX glxvideosource);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXVideoSourceSGIX ( * PFNGLXCREATEGLXVIDEOSOURCESGIXPROC) (Display *display, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode);
 typedef void ( * PFNGLXDESTROYGLXVIDEOSOURCESGIXPROC) (Display *dpy, GLXVideoSourceSGIX glxvideosource);
@@ -608,10 +615,10 @@ typedef void ( * PFNGLXDESTROYGLXVIDEOSOURCESGIXPROC) (Display *dpy, GLXVideoSou
 #define GLX_EXT_import_context 1
 #ifdef GLX_GLXEXT_PROTOTYPES
 extern Display * glXGetCurrentDisplayEXT (void);
-extern int glXQueryContextInfoEXT (Display *, GLXContext, int, int *);
-extern GLXContextID glXGetContextIDEXT (const GLXContext);
-extern GLXContext glXImportContextEXT (Display *, GLXContextID);
-extern void glXFreeContextEXT (Display *, GLXContext);
+extern int glXQueryContextInfoEXT (Display *dpy, GLXContext context, int attribute, int *value);
+extern GLXContextID glXGetContextIDEXT (const GLXContext context);
+extern GLXContext glXImportContextEXT (Display *dpy, GLXContextID contextID);
+extern void glXFreeContextEXT (Display *dpy, GLXContext context);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Display * ( * PFNGLXGETCURRENTDISPLAYEXTPROC) (void);
 typedef int ( * PFNGLXQUERYCONTEXTINFOEXTPROC) (Display *dpy, GLXContext context, int attribute, int *value);
@@ -623,12 +630,12 @@ typedef void ( * PFNGLXFREECONTEXTEXTPROC) (Display *dpy, GLXContext context);
 #ifndef GLX_SGIX_fbconfig
 #define GLX_SGIX_fbconfig 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXGetFBConfigAttribSGIX (Display *, GLXFBConfigSGIX, int, int *);
-extern GLXFBConfigSGIX * glXChooseFBConfigSGIX (Display *, int, int *, int *);
-extern GLXPixmap glXCreateGLXPixmapWithConfigSGIX (Display *, GLXFBConfigSGIX, Pixmap);
-extern GLXContext glXCreateContextWithConfigSGIX (Display *, GLXFBConfigSGIX, int, GLXContext, Bool);
-extern XVisualInfo * glXGetVisualFromFBConfigSGIX (Display *, GLXFBConfigSGIX);
-extern GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX (Display *, XVisualInfo *);
+extern int glXGetFBConfigAttribSGIX (Display *dpy, GLXFBConfigSGIX config, int attribute, int *value);
+extern GLXFBConfigSGIX * glXChooseFBConfigSGIX (Display *dpy, int screen, int *attrib_list, int *nelements);
+extern GLXPixmap glXCreateGLXPixmapWithConfigSGIX (Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap);
+extern GLXContext glXCreateContextWithConfigSGIX (Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct);
+extern XVisualInfo * glXGetVisualFromFBConfigSGIX (Display *dpy, GLXFBConfigSGIX config);
+extern GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX (Display *dpy, XVisualInfo *vis);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXGETFBCONFIGATTRIBSGIXPROC) (Display *dpy, GLXFBConfigSGIX config, int attribute, int *value);
 typedef GLXFBConfigSGIX * ( * PFNGLXCHOOSEFBCONFIGSGIXPROC) (Display *dpy, int screen, int *attrib_list, int *nelements);
@@ -641,11 +648,11 @@ typedef GLXFBConfigSGIX ( * PFNGLXGETFBCONFIGFROMVISUALSGIXPROC) (Display *dpy,
 #ifndef GLX_SGIX_pbuffer
 #define GLX_SGIX_pbuffer 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXPbufferSGIX glXCreateGLXPbufferSGIX (Display *, GLXFBConfigSGIX, unsigned int, unsigned int, int *);
-extern void glXDestroyGLXPbufferSGIX (Display *, GLXPbufferSGIX);
-extern int glXQueryGLXPbufferSGIX (Display *, GLXPbufferSGIX, int, unsigned int *);
-extern void glXSelectEventSGIX (Display *, GLXDrawable, unsigned long);
-extern void glXGetSelectedEventSGIX (Display *, GLXDrawable, unsigned long *);
+extern GLXPbufferSGIX glXCreateGLXPbufferSGIX (Display *dpy, GLXFBConfigSGIX config, unsigned int width, unsigned int height, int *attrib_list);
+extern void glXDestroyGLXPbufferSGIX (Display *dpy, GLXPbufferSGIX pbuf);
+extern int glXQueryGLXPbufferSGIX (Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value);
+extern void glXSelectEventSGIX (Display *dpy, GLXDrawable drawable, unsigned long mask);
+extern void glXGetSelectedEventSGIX (Display *dpy, GLXDrawable drawable, unsigned long *mask);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXPbufferSGIX ( * PFNGLXCREATEGLXPBUFFERSGIXPROC) (Display *dpy, GLXFBConfigSGIX config, unsigned int width, unsigned int height, int *attrib_list);
 typedef void ( * PFNGLXDESTROYGLXPBUFFERSGIXPROC) (Display *dpy, GLXPbufferSGIX pbuf);
@@ -657,7 +664,7 @@ typedef void ( * PFNGLXGETSELECTEDEVENTSGIXPROC) (Display *dpy, GLXDrawable draw
 #ifndef GLX_SGI_cushion
 #define GLX_SGI_cushion 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXCushionSGI (Display *, Window, float);
+extern void glXCushionSGI (Display *dpy, Window window, float cushion);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXCUSHIONSGIPROC) (Display *dpy, Window window, float cushion);
 #endif
@@ -665,11 +672,11 @@ typedef void ( * PFNGLXCUSHIONSGIPROC) (Display *dpy, Window window, float cushi
 #ifndef GLX_SGIX_video_resize
 #define GLX_SGIX_video_resize 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXBindChannelToWindowSGIX (Display *, int, int, Window);
-extern int glXChannelRectSGIX (Display *, int, int, int, int, int, int);
-extern int glXQueryChannelRectSGIX (Display *, int, int, int *, int *, int *, int *);
-extern int glXQueryChannelDeltasSGIX (Display *, int, int, int *, int *, int *, int *);
-extern int glXChannelRectSyncSGIX (Display *, int, int, GLenum);
+extern int glXBindChannelToWindowSGIX (Display *display, int screen, int channel, Window window);
+extern int glXChannelRectSGIX (Display *display, int screen, int channel, int x, int y, int w, int h);
+extern int glXQueryChannelRectSGIX (Display *display, int screen, int channel, int *dx, int *dy, int *dw, int *dh);
+extern int glXQueryChannelDeltasSGIX (Display *display, int screen, int channel, int *x, int *y, int *w, int *h);
+extern int glXChannelRectSyncSGIX (Display *display, int screen, int channel, GLenum synctype);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXBINDCHANNELTOWINDOWSGIXPROC) (Display *display, int screen, int channel, Window window);
 typedef int ( * PFNGLXCHANNELRECTSGIXPROC) (Display *display, int screen, int channel, int x, int y, int w, int h);
@@ -682,7 +689,7 @@ typedef int ( * PFNGLXCHANNELRECTSYNCSGIXPROC) (Display *display, int screen, in
 #define GLX_SGIX_dmbuffer 1
 #ifdef _DM_BUFFER_H_
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXAssociateDMPbufferSGIX (Display *, GLXPbufferSGIX, DMparams *, DMbuffer);
+extern Bool glXAssociateDMPbufferSGIX (Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXASSOCIATEDMPBUFFERSGIXPROC) (Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer);
 #endif /* _DM_BUFFER_H_ */
@@ -691,24 +698,16 @@ typedef Bool ( * PFNGLXASSOCIATEDMPBUFFERSGIXPROC) (Display *dpy, GLXPbufferSGIX
 #ifndef GLX_SGIX_swap_group
 #define GLX_SGIX_swap_group 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXJoinSwapGroupSGIX (Display *, GLXDrawable, GLXDrawable);
+extern void glXJoinSwapGroupSGIX (Display *dpy, GLXDrawable drawable, GLXDrawable member);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXJOINSWAPGROUPSGIXPROC) (Display *dpy, GLXDrawable drawable, GLXDrawable member);
 #endif
 
-#ifndef GLX_INTEL_swap_event
-#define GLX_INTEL_swap_event
-#define GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK 0x10000000
-#define GLX_EXCHANGE_COMPLETE_INTEL	    0x8024
-#define GLX_BLIT_COMPLETE_INTEL		    0x8025
-#define GLX_FLIP_COMPLETE_INTEL		    0x8026
-#endif
-
 #ifndef GLX_SGIX_swap_barrier
 #define GLX_SGIX_swap_barrier 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXBindSwapBarrierSGIX (Display *, GLXDrawable, int);
-extern Bool glXQueryMaxSwapBarriersSGIX (Display *, int, int *);
+extern void glXBindSwapBarrierSGIX (Display *dpy, GLXDrawable drawable, int barrier);
+extern Bool glXQueryMaxSwapBarriersSGIX (Display *dpy, int screen, int *max);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXBINDSWAPBARRIERSGIXPROC) (Display *dpy, GLXDrawable drawable, int barrier);
 typedef Bool ( * PFNGLXQUERYMAXSWAPBARRIERSSGIXPROC) (Display *dpy, int screen, int *max);
@@ -717,7 +716,7 @@ typedef Bool ( * PFNGLXQUERYMAXSWAPBARRIERSSGIXPROC) (Display *dpy, int screen,
 #ifndef GLX_SUN_get_transparent_index
 #define GLX_SUN_get_transparent_index 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Status glXGetTransparentIndexSUN (Display *, Window, Window, long *);
+extern Status glXGetTransparentIndexSUN (Display *dpy, Window overlay, Window underlay, long *pTransparentIndex);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Status ( * PFNGLXGETTRANSPARENTINDEXSUNPROC) (Display *dpy, Window overlay, Window underlay, long *pTransparentIndex);
 #endif
@@ -725,7 +724,7 @@ typedef Status ( * PFNGLXGETTRANSPARENTINDEXSUNPROC) (Display *dpy, Window overl
 #ifndef GLX_MESA_copy_sub_buffer
 #define GLX_MESA_copy_sub_buffer 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXCopySubBufferMESA (Display *, GLXDrawable, int, int, int, int);
+extern void glXCopySubBufferMESA (Display *dpy, GLXDrawable drawable, int x, int y, int width, int height);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXCOPYSUBBUFFERMESAPROC) (Display *dpy, GLXDrawable drawable, int x, int y, int width, int height);
 #endif
@@ -733,7 +732,7 @@ typedef void ( * PFNGLXCOPYSUBBUFFERMESAPROC) (Display *dpy, GLXDrawable drawabl
 #ifndef GLX_MESA_pixmap_colormap
 #define GLX_MESA_pixmap_colormap 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXPixmap glXCreateGLXPixmapMESA (Display *, XVisualInfo *, Pixmap, Colormap);
+extern GLXPixmap glXCreateGLXPixmapMESA (Display *dpy, XVisualInfo *visual, Pixmap pixmap, Colormap cmap);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXPixmap ( * PFNGLXCREATEGLXPIXMAPMESAPROC) (Display *dpy, XVisualInfo *visual, Pixmap pixmap, Colormap cmap);
 #endif
@@ -741,7 +740,7 @@ typedef GLXPixmap ( * PFNGLXCREATEGLXPIXMAPMESAPROC) (Display *dpy, XVisualInfo
 #ifndef GLX_MESA_release_buffers
 #define GLX_MESA_release_buffers 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXReleaseBuffersMESA (Display *, GLXDrawable);
+extern Bool glXReleaseBuffersMESA (Display *dpy, GLXDrawable drawable);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXRELEASEBUFFERSMESAPROC) (Display *dpy, GLXDrawable drawable);
 #endif
@@ -749,7 +748,7 @@ typedef Bool ( * PFNGLXRELEASEBUFFERSMESAPROC) (Display *dpy, GLXDrawable drawab
 #ifndef GLX_MESA_set_3dfx_mode
 #define GLX_MESA_set_3dfx_mode 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXSet3DfxModeMESA (int);
+extern Bool glXSet3DfxModeMESA (int mode);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXSET3DFXMODEMESAPROC) (int mode);
 #endif
@@ -765,11 +764,11 @@ typedef Bool ( * PFNGLXSET3DFXMODEMESAPROC) (int mode);
 #ifndef GLX_OML_sync_control
 #define GLX_OML_sync_control 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXGetSyncValuesOML (Display *, GLXDrawable, int64_t *, int64_t *, int64_t *);
-extern Bool glXGetMscRateOML (Display *, GLXDrawable, int32_t *, int32_t *);
-extern int64_t glXSwapBuffersMscOML (Display *, GLXDrawable, int64_t, int64_t, int64_t);
-extern Bool glXWaitForMscOML (Display *, GLXDrawable, int64_t, int64_t, int64_t, int64_t *, int64_t *, int64_t *);
-extern Bool glXWaitForSbcOML (Display *, GLXDrawable, int64_t, int64_t *, int64_t *, int64_t *);
+extern Bool glXGetSyncValuesOML (Display *dpy, GLXDrawable drawable, int64_t *ust, int64_t *msc, int64_t *sbc);
+extern Bool glXGetMscRateOML (Display *dpy, GLXDrawable drawable, int32_t *numerator, int32_t *denominator);
+extern int64_t glXSwapBuffersMscOML (Display *dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder);
+extern Bool glXWaitForMscOML (Display *dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc);
+extern Bool glXWaitForSbcOML (Display *dpy, GLXDrawable drawable, int64_t target_sbc, int64_t *ust, int64_t *msc, int64_t *sbc);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXGETSYNCVALUESOMLPROC) (Display *dpy, GLXDrawable drawable, int64_t *ust, int64_t *msc, int64_t *sbc);
 typedef Bool ( * PFNGLXGETMSCRATEOMLPROC) (Display *dpy, GLXDrawable drawable, int32_t *numerator, int32_t *denominator);
@@ -810,14 +809,14 @@ typedef struct {
 } GLXPipeRectLimits;
 
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern GLXHyperpipeNetworkSGIX * glXQueryHyperpipeNetworkSGIX (Display *, int *);
-extern int glXHyperpipeConfigSGIX (Display *, int, int, GLXHyperpipeConfigSGIX *, int *);
-extern GLXHyperpipeConfigSGIX * glXQueryHyperpipeConfigSGIX (Display *, int, int *);
-extern int glXDestroyHyperpipeConfigSGIX (Display *, int);
-extern int glXBindHyperpipeSGIX (Display *, int);
-extern int glXQueryHyperpipeBestAttribSGIX (Display *, int, int, int, void *, void *);
-extern int glXHyperpipeAttribSGIX (Display *, int, int, int, void *);
-extern int glXQueryHyperpipeAttribSGIX (Display *, int, int, int, void *);
+extern GLXHyperpipeNetworkSGIX * glXQueryHyperpipeNetworkSGIX (Display *dpy, int *npipes);
+extern int glXHyperpipeConfigSGIX (Display *dpy, int networkId, int npipes, GLXHyperpipeConfigSGIX *cfg, int *hpId);
+extern GLXHyperpipeConfigSGIX * glXQueryHyperpipeConfigSGIX (Display *dpy, int hpId, int *npipes);
+extern int glXDestroyHyperpipeConfigSGIX (Display *dpy, int hpId);
+extern int glXBindHyperpipeSGIX (Display *dpy, int hpId);
+extern int glXQueryHyperpipeBestAttribSGIX (Display *dpy, int timeSlice, int attrib, int size, void *attribList, void *returnAttribList);
+extern int glXHyperpipeAttribSGIX (Display *dpy, int timeSlice, int attrib, int size, void *attribList);
+extern int glXQueryHyperpipeAttribSGIX (Display *dpy, int timeSlice, int attrib, int size, void *returnAttribList);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef GLXHyperpipeNetworkSGIX * ( * PFNGLXQUERYHYPERPIPENETWORKSGIXPROC) (Display *dpy, int *npipes);
 typedef int ( * PFNGLXHYPERPIPECONFIGSGIXPROC) (Display *dpy, int networkId, int npipes, GLXHyperpipeConfigSGIX *cfg, int *hpId);
@@ -832,7 +831,7 @@ typedef int ( * PFNGLXQUERYHYPERPIPEATTRIBSGIXPROC) (Display *dpy, int timeSlice
 #ifndef GLX_MESA_agp_offset
 #define GLX_MESA_agp_offset 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern unsigned int glXGetAGPOffsetMESA (const void *);
+extern unsigned int glXGetAGPOffsetMESA (const void *pointer);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef unsigned int ( * PFNGLXGETAGPOFFSETMESAPROC) (const void *pointer);
 #endif
@@ -848,8 +847,8 @@ typedef unsigned int ( * PFNGLXGETAGPOFFSETMESAPROC) (const void *pointer);
 #ifndef GLX_EXT_texture_from_pixmap
 #define GLX_EXT_texture_from_pixmap 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXBindTexImageEXT (Display *, GLXDrawable, int, const int *);
-extern void glXReleaseTexImageEXT (Display *, GLXDrawable, int);
+extern void glXBindTexImageEXT (Display *dpy, GLXDrawable drawable, int buffer, const int *attrib_list);
+extern void glXReleaseTexImageEXT (Display *dpy, GLXDrawable drawable, int buffer);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXBINDTEXIMAGEEXTPROC) (Display *dpy, GLXDrawable drawable, int buffer, const int *attrib_list);
 typedef void ( * PFNGLXRELEASETEXIMAGEEXTPROC) (Display *dpy, GLXDrawable drawable, int buffer);
@@ -858,8 +857,8 @@ typedef void ( * PFNGLXRELEASETEXIMAGEEXTPROC) (Display *dpy, GLXDrawable drawab
 #ifndef GLX_NV_present_video
 #define GLX_NV_present_video 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern unsigned int * glXEnumerateVideoDevicesNV (Display *, int, int *);
-extern int glXBindVideoDeviceNV (Display *, unsigned int, unsigned int, const int *);
+extern unsigned int * glXEnumerateVideoDevicesNV (Display *dpy, int screen, int *nelements);
+extern int glXBindVideoDeviceNV (Display *dpy, unsigned int video_slot, unsigned int video_device, const int *attrib_list);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef unsigned int * ( * PFNGLXENUMERATEVIDEODEVICESNVPROC) (Display *dpy, int screen, int *nelements);
 typedef int ( * PFNGLXBINDVIDEODEVICENVPROC) (Display *dpy, unsigned int video_slot, unsigned int video_device, const int *attrib_list);
@@ -868,12 +867,12 @@ typedef int ( * PFNGLXBINDVIDEODEVICENVPROC) (Display *dpy, unsigned int video_s
 #ifndef GLX_NV_video_output
 #define GLX_NV_video_output 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXGetVideoDeviceNV (Display *, int, int, GLXVideoDeviceNV *);
-extern int glXReleaseVideoDeviceNV (Display *, int, GLXVideoDeviceNV);
-extern int glXBindVideoImageNV (Display *, GLXVideoDeviceNV, GLXPbuffer, int);
-extern int glXReleaseVideoImageNV (Display *, GLXPbuffer);
-extern int glXSendPbufferToVideoNV (Display *, GLXPbuffer, int, unsigned long *, GLboolean);
-extern int glXGetVideoInfoNV (Display *, int, GLXVideoDeviceNV, unsigned long *, unsigned long *);
+extern int glXGetVideoDeviceNV (Display *dpy, int screen, int numVideoDevices, GLXVideoDeviceNV *pVideoDevice);
+extern int glXReleaseVideoDeviceNV (Display *dpy, int screen, GLXVideoDeviceNV VideoDevice);
+extern int glXBindVideoImageNV (Display *dpy, GLXVideoDeviceNV VideoDevice, GLXPbuffer pbuf, int iVideoBuffer);
+extern int glXReleaseVideoImageNV (Display *dpy, GLXPbuffer pbuf);
+extern int glXSendPbufferToVideoNV (Display *dpy, GLXPbuffer pbuf, int iBufferType, unsigned long *pulCounterPbuffer, GLboolean bBlock);
+extern int glXGetVideoInfoNV (Display *dpy, int screen, GLXVideoDeviceNV VideoDevice, unsigned long *pulCounterOutputPbuffer, unsigned long *pulCounterOutputVideo);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXGETVIDEODEVICENVPROC) (Display *dpy, int screen, int numVideoDevices, GLXVideoDeviceNV *pVideoDevice);
 typedef int ( * PFNGLXRELEASEVIDEODEVICENVPROC) (Display *dpy, int screen, GLXVideoDeviceNV VideoDevice);
@@ -886,12 +885,12 @@ typedef int ( * PFNGLXGETVIDEOINFONVPROC) (Display *dpy, int screen, GLXVideoDev
 #ifndef GLX_NV_swap_group
 #define GLX_NV_swap_group 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern Bool glXJoinSwapGroupNV (Display *, GLXDrawable, GLuint);
-extern Bool glXBindSwapBarrierNV (Display *, GLuint, GLuint);
-extern Bool glXQuerySwapGroupNV (Display *, GLXDrawable, GLuint *, GLuint *);
-extern Bool glXQueryMaxSwapGroupsNV (Display *, int, GLuint *, GLuint *);
-extern Bool glXQueryFrameCountNV (Display *, int, GLuint *);
-extern Bool glXResetFrameCountNV (Display *, int);
+extern Bool glXJoinSwapGroupNV (Display *dpy, GLXDrawable drawable, GLuint group);
+extern Bool glXBindSwapBarrierNV (Display *dpy, GLuint group, GLuint barrier);
+extern Bool glXQuerySwapGroupNV (Display *dpy, GLXDrawable drawable, GLuint *group, GLuint *barrier);
+extern Bool glXQueryMaxSwapGroupsNV (Display *dpy, int screen, GLuint *maxGroups, GLuint *maxBarriers);
+extern Bool glXQueryFrameCountNV (Display *dpy, int screen, GLuint *count);
+extern Bool glXResetFrameCountNV (Display *dpy, int screen);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef Bool ( * PFNGLXJOINSWAPGROUPNVPROC) (Display *dpy, GLXDrawable drawable, GLuint group);
 typedef Bool ( * PFNGLXBINDSWAPBARRIERNVPROC) (Display *dpy, GLuint group, GLuint barrier);
@@ -904,11 +903,11 @@ typedef Bool ( * PFNGLXRESETFRAMECOUNTNVPROC) (Display *dpy, int screen);
 #ifndef GLX_NV_video_capture
 #define GLX_NV_video_capture 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXBindVideoCaptureDeviceNV (Display *, unsigned int, GLXVideoCaptureDeviceNV);
-extern GLXVideoCaptureDeviceNV * glXEnumerateVideoCaptureDevicesNV (Display *, int, int *);
-extern void glXLockVideoCaptureDeviceNV (Display *, GLXVideoCaptureDeviceNV);
-extern int glXQueryVideoCaptureDeviceNV (Display *, GLXVideoCaptureDeviceNV, int, int *);
-extern void glXReleaseVideoCaptureDeviceNV (Display *, GLXVideoCaptureDeviceNV);
+extern int glXBindVideoCaptureDeviceNV (Display *dpy, unsigned int video_capture_slot, GLXVideoCaptureDeviceNV device);
+extern GLXVideoCaptureDeviceNV * glXEnumerateVideoCaptureDevicesNV (Display *dpy, int screen, int *nelements);
+extern void glXLockVideoCaptureDeviceNV (Display *dpy, GLXVideoCaptureDeviceNV device);
+extern int glXQueryVideoCaptureDeviceNV (Display *dpy, GLXVideoCaptureDeviceNV device, int attribute, int *value);
+extern void glXReleaseVideoCaptureDeviceNV (Display *dpy, GLXVideoCaptureDeviceNV device);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXBINDVIDEOCAPTUREDEVICENVPROC) (Display *dpy, unsigned int video_capture_slot, GLXVideoCaptureDeviceNV device);
 typedef GLXVideoCaptureDeviceNV * ( * PFNGLXENUMERATEVIDEOCAPTUREDEVICESNVPROC) (Display *dpy, int screen, int *nelements);
@@ -920,7 +919,7 @@ typedef void ( * PFNGLXRELEASEVIDEOCAPTUREDEVICENVPROC) (Display *dpy, GLXVideoC
 #ifndef GLX_EXT_swap_control
 #define GLX_EXT_swap_control 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern int glXSwapIntervalEXT (Display *, GLXDrawable, int);
+extern int glXSwapIntervalEXT (Display *dpy, GLXDrawable drawable, int interval);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef int ( * PFNGLXSWAPINTERVALEXTPROC) (Display *dpy, GLXDrawable drawable, int interval);
 #endif
@@ -928,11 +927,15 @@ typedef int ( * PFNGLXSWAPINTERVALEXTPROC) (Display *dpy, GLXDrawable drawable,
 #ifndef GLX_NV_copy_image
 #define GLX_NV_copy_image 1
 #ifdef GLX_GLXEXT_PROTOTYPES
-extern void glXCopyImageSubDataNV (Display *, GLXContext, GLuint, GLenum, GLint, GLint, GLint, GLint, GLXContext, GLuint, GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei);
+extern void glXCopyImageSubDataNV (Display *dpy, GLXContext srcCtx, GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLXContext dstCtx, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei width, GLsizei height, GLsizei depth);
 #endif /* GLX_GLXEXT_PROTOTYPES */
 typedef void ( * PFNGLXCOPYIMAGESUBDATANVPROC) (Display *dpy, GLXContext srcCtx, GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLXContext dstCtx, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei width, GLsizei height, GLsizei depth);
 #endif
 
+#ifndef GLX_INTEL_swap_event
+#define GLX_INTEL_swap_event 1
+#endif
+
 
 #ifdef __cplusplus
 }
diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c
index 589029db5..b971cc976 100644
--- a/mesalib/src/mesa/main/state.c
+++ b/mesalib/src/mesa/main/state.c
@@ -582,9 +582,6 @@ _mesa_update_state_locked( GLcontext *ctx )
    if (new_state & _DD_NEW_SEPARATE_SPECULAR)
       update_separate_specular( ctx );
 
-   if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
-      update_arrays( ctx );
-
    if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
       update_viewport_matrix(ctx);
 
@@ -620,6 +617,8 @@ _mesa_update_state_locked( GLcontext *ctx )
       new_prog_state |= update_program( ctx );
    }
 
+   if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
+      update_arrays( ctx );
 
  out:
    new_prog_state |= update_program_constants(ctx);
diff --git a/mesalib/src/mesa/main/version.h b/mesalib/src/mesa/main/version.h
index 2e1d70c46..cd760beba 100644
--- a/mesalib/src/mesa/main/version.h
+++ b/mesalib/src/mesa/main/version.h
@@ -34,8 +34,8 @@
 /* Mesa version */
 #define MESA_MAJOR 7
 #define MESA_MINOR 8
-#define MESA_PATCH 0
-#define MESA_VERSION_STRING "7.8"
+#define MESA_PATCH 1
+#define MESA_VERSION_STRING "7.8.1"
 
 /* To make version comparison easy */
 #define MESA_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))