diff options
Diffstat (limited to 'build-aux/depcomp')
| -rwxr-xr-x | build-aux/depcomp | 124 |
1 files changed, 72 insertions, 52 deletions
diff --git a/build-aux/depcomp b/build-aux/depcomp index bd0ac08..25a39e6 100755 --- a/build-aux/depcomp +++ b/build-aux/depcomp @@ -1,10 +1,10 @@ #! /bin/sh # depcomp - compile a program generating dependencies as side-effects -scriptversion=2011-12-04.11; # UTC +scriptversion=2012-03-27.16; # UTC # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, -# 2011 Free Software Foundation, Inc. +# 2011, 2012 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -28,7 +28,7 @@ scriptversion=2011-12-04.11; # UTC case $1 in '') - echo "$0: No command. Try \`$0 --help' for more information." 1>&2 + echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) @@ -40,8 +40,8 @@ as side-effects. Environment variables: depmode Dependency tracking mode. - source Source file read by `PROGRAMS ARGS'. - object Object file output by `PROGRAMS ARGS'. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. @@ -57,6 +57,12 @@ EOF ;; esac +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' + if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 @@ -102,6 +108,12 @@ if test "$depmode" = msvc7msys; then depmode=msvc7 fi +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency informations. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what @@ -156,15 +168,14 @@ gcc) ## The second -e expression handles DOS-style file names with drive letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" -## This next piece of magic avoids the `deleted header file' problem. +## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. - tr ' ' ' -' < "$tmpdepfile" | -## Some versions of gcc put a space before the `:'. On the theory + tr ' ' "$nl" < "$tmpdepfile" | +## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. @@ -203,18 +214,15 @@ sgi) # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; - # the IRIX cc adds comments like `#:fec' to the end of the + # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. - tr ' ' ' -' < "$tmpdepfile" \ + tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ - tr ' -' ' ' >> "$depfile" + tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. - tr ' ' ' -' < "$tmpdepfile" \ + tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else @@ -226,10 +234,17 @@ sgi) rm -f "$tmpdepfile" ;; +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the - # current directory. Also, the AIX compiler puts `$object:' at the + # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` @@ -259,12 +274,11 @@ aix) test -f "$tmpdepfile" && break done if test -f "$tmpdepfile"; then - # Each line is of the form `foo.o: dependent.h'. + # Each line is of the form 'foo.o: dependent.h'. # Do two passes, one to just change these to - # `$object: dependent.h' and one to simply `dependent.h:'. + # '$object: dependent.h' and one to simply 'dependent.h:'. sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" - # That's a tab and a space in the []. - sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" + sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" else # The sourcefile does not contain any dependencies, so just # store a dummy comment line, to avoid errors with the Makefile @@ -275,23 +289,26 @@ aix) ;; icc) - # Intel's C compiler understands `-MD -MF file'. However on - # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c + # Intel's C compiler anf tcc (Tiny C Compiler) understand '-MD -MF file'. + # However on + # $CC -MD -MF foo.d -c -o sub/foo.o sub/foo.c # ICC 7.0 will fill foo.d with something like # foo.o: sub/foo.c # foo.o: sub/foo.h - # which is wrong. We want: + # which is wrong. We want # sub/foo.o: sub/foo.c # sub/foo.o: sub/foo.h # sub/foo.c: # sub/foo.h: # ICC 7.1 will output # foo.o: sub/foo.c sub/foo.h - # and will wrap long lines using \ : + # and will wrap long lines using '\': # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... - + # tcc 0.9.26 (FIXME still under development at the moment of writing) + # will emit a similar output, but also prepend the continuation lines + # with horizontal tabulation characters. "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -eq 0; then : @@ -300,15 +317,21 @@ icc) exit $stat fi rm -f "$depfile" - # Each line is of the form `foo.o: dependent.h', - # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Each line is of the form 'foo.o: dependent.h', + # or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'. # Do two passes, one to just change these to - # `$object: dependent.h' and one to simply `dependent.h:'. - sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" - # Some versions of the HPUX 10.20 sed can't process this invocation - # correctly. Breaking it into two sed invocations is a workaround. - sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | - sed -e 's/$/ :/' >> "$depfile" + # '$object: dependent.h' and one to simply 'dependent.h:'. + sed -e "s/^[ $tab][ $tab]*/ /" -e "s,^[^:]*:,$object :," \ + < "$tmpdepfile" > "$depfile" + sed ' + s/[ '"$tab"'][ '"$tab"']*/ /g + s/^ *// + s/ *\\*$// + s/^[^:]*: *// + /^$/d + /:$/d + s/$/ :/ + ' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; @@ -344,7 +367,7 @@ hp2) done if test -f "$tmpdepfile"; then sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile" - # Add `dependent.h:' lines. + # Add 'dependent.h:' lines. sed -ne '2,${ s/^ *// s/ \\*$// @@ -359,9 +382,9 @@ hp2) tru64) # The Tru64 compiler uses -MD to generate dependencies as a side - # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put - # dependencies in `foo.d' instead, so we check for that too. + # dependencies in 'foo.d' instead, so we check for that too. # Subdirectories are respected. dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` test "x$dir" = "x$object" && dir= @@ -407,8 +430,7 @@ tru64) done if test -f "$tmpdepfile"; then sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" - # That's a tab and a space in the []. - sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" + sed -e 's,^.*\.[a-z]*:['"$tab"' ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" else echo "#dummy" > "$depfile" fi @@ -443,11 +465,11 @@ msvc7) p }' | $cygpath_u | sort -u | sed -n ' s/ /\\ /g -s/\(.*\)/ \1 \\/p +s/\(.*\)/'"$tab"'\1 \\/p s/.\(.*\) \\/\1:/ H $ { - s/.*/ / + s/.*/'"$tab"'/ G p }' >> "$depfile" @@ -478,7 +500,7 @@ dashmstdout) shift fi - # Remove `-o $object'. + # Remove '-o $object'. IFS=" " for arg do @@ -498,15 +520,14 @@ dashmstdout) done test -z "$dashmflag" && dashmflag=-M - # Require at least two characters before searching for `:' + # Require at least two characters before searching for ':' # in the target name. This is to cope with DOS-style filenames: - # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. "$@" $dashmflag | - sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" + sed 's:^['"$tab"' ]*[^:'"$tab"' ][^:][^:]*\:['"$tab"' ]*:'"$object"'\: :' > "$tmpdepfile" rm -f "$depfile" cat < "$tmpdepfile" > "$depfile" - tr ' ' ' -' < "$tmpdepfile" | \ + tr ' ' "$nl" < "$tmpdepfile" | \ ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" @@ -562,8 +583,7 @@ makedepend) # makedepend may prepend the VPATH from the source file name to the object. # No need to regex-escape $object, excess matching of '.' is harmless. sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" - sed '1,2d' "$tmpdepfile" | tr ' ' ' -' | \ + sed '1,2d' "$tmpdepfile" | tr ' ' "$nl" | \ ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" @@ -583,7 +603,7 @@ cpp) shift fi - # Remove `-o $object'. + # Remove '-o $object'. IFS=" " for arg do @@ -652,8 +672,8 @@ msvisualcpp) sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" - sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" - echo " " >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; |