dnl Process this file with autoconf to produce a configure script.

dnl Prolog

AC_INIT(Main.c)
AC_PREREQ(2.13)

dnl Reset default compilation flags.

CXXFLAGS="$CXXFLAGS -O3"
CPPFLAGS="$CPPFLAGS -O3"

dnl Prefer headers and libraries from nx-X11 if present.

if test -d "../nx-X11/exports/include" ; then
    CXXFLAGS="$CXXFLAGS -I../nx-X11/exports/include"
    LIBS="$LIBS -L../nx-X11/exports/lib"
fi

dnl Check whether --with-ipaq was given.

if test "${with_ipaq}" = yes; then
  echo -e "enabling ipaq configuration"
  CXX="arm-linux-c++"
  CC="arm-linux-gcc"
  unset ac_cv_prog_armcxx
  unset ac_cv_prog_armcc
  unset ac_cv_prog_CXXCPP
  AC_CHECK_PROG([armcxx],["$CXX"],[yes],[no],[$PATH])
  AC_CHECK_PROG([armcc],["$CC"],[yes],[no],[$PATH])
  if test $armcxx = "yes" && test $armcc = "yes" ; then
    ac_cv_prog_CXX="$CXX"
    ac_cv_prog_CC="$CC"
  else
    AC_MSG_ERROR(installation or configuration problem: I cannot find compiler for arm-linux)
  fi
else
  unset ac_cv_prog_CXX
  unset ac_cv_prog_CC
  unset ac_cv_prog_CXXCPP
fi  

dnl Check for programs.

AC_PROG_CXX
AC_PROG_CC
AC_LANG_CPLUSPLUS

dnl Check for BSD compatible install.

AC_PROG_INSTALL

dnl Check for extra header files.

AC_PATH_XTRA

dnl Custom addition.

ac_help="$ac_help
  --with-symbols          give -g flag to compiler to produce debug symbols
  --with-info             define INFO at compile time to get basic log output
  --with-valgrind         clean up allocated buffers to avoid valgrind warnings
  --with-version          use this version for produced libraries"

dnl Check to see if we're running under Cygwin32.


dnl Check to see if we're running under FreeBSD.
AC_DEFUN(nxconf_FreeBSD,
[AC_CACHE_CHECK(for FreeBSD environment, nxconf_cv_freebsd,
[AC_TRY_COMPILE(,[return __FreeBSD__;],
nxconf_cv_freebsd=yes, nxconf_cv_freebsd=no)
rm -f conftest*])
FreeBSD=
test "$nxconf_cv_freebsd" = yes && FreeBSD=yes])
nxconf_FreeBSD


AC_DEFUN(nxconf_CYGWIN32,
[AC_CACHE_CHECK(for Cygwin32 environment, nxconf_cv_cygwin32,
[AC_TRY_COMPILE(,[return __CYGWIN32__;],
nxconf_cv_cygwin32=yes, nxconf_cv_cygwin32=no)
rm -f conftest*])
CYGWIN32=
test "$nxconf_cv_cygwin32" = yes && CYGWIN32=yes])
nxconf_CYGWIN32

dnl Check for Darwin environment.

AC_DEFUN(nxconf_DARWIN,
[AC_CACHE_CHECK(for Darwin environment, nxconf_cv_darwin,
[AC_TRY_COMPILE(,[return __APPLE__;],
nxconf_cv_darwin=yes, nxconf_cv_darwin=no)
rm -f conftest*])
DARWIN=
test "$nxconf_cv_darwin" = yes && DARWIN=yes])
nxconf_DARWIN

dnl Check to see if we're running under Solaris.

AC_DEFUN(nxconf_SUN,
[AC_CACHE_CHECK(for SunOS environment, nxconf_cv_sun,
[AC_TRY_COMPILE(,[return __sun;],
nxconf_cv_sun=yes, nxconf_cv_sun=no)
rm -f conftest*])
SUN=
test "$nxconf_cv_sun" = yes && SUN=yes])
nxconf_SUN

dnl Check whether --with-version was given.

AC_SUBST(LIBVERSION)
AC_SUBST(VERSION)
if test "${with_version}" = yes; then
  VERSION=${ac_option}
else
  VERSION=`cat VERSION`
fi
echo -e "compiling version ${VERSION}"

LIBVERSION=`echo ${VERSION} | cut -d '.' -f 1`

CXXFLAGS="$CXXFLAGS -DVERSION=\\\"${VERSION}\\\""
CPPFLAGS="$CPPFLAGS -DVERSION=\\\"${VERSION}\\\""

dnl Check whether --with-symbols or --without-symbols was
dnl given and set the required optimization level.

if test "${with_symbols}" = yes; then
  echo -e "enabling production of debug symbols"
  CXXFLAGS="-g $CXXFLAGS"
  CPPFLAGS="-g $CPPFLAGS"
else
  echo -e "disabling production of debug symbols"
fi

dnl Check whether --with-info or --without-info was given.

if test "${with_info}" = yes; then
  echo -e "enabling info output in the log file"
  CXXFLAGS="$CXXFLAGS -DINFO"
  CPPFLAGS="$CPPFLAGS -DINFO"
else
  echo -e "disabling info output in the log file"
fi

dnl Check whether --with-valgrind or --without-valgrind was given.

if test "${with_valgrind}" = yes; then
  echo -e "enabling valgrind memory checker workarounds"
  CXXFLAGS="$CXXFLAGS -DVALGRIND"
  CPPFLAGS="$CPPFLAGS -DVALGRIND"
else
  echo -e "disabling valgrind memory checker workarounds"
fi

dnl Cygwin requires that the stdc++ library is linked explicitly.
dnl GCC 3.3.x requires also the z, png and jpeg libraries. This is
dnl not true anymore since GCC 3.4.x.

if test "$CYGWIN32" = yes; then
    LIBS="$LIBS -L../nxcomp -lXcomp -lstdc++ -Wl,-e,_mainCRTStartup -ljpeg -lpng -lz"
else
    LIBS="$LIBS -L../nxcomp -lXcomp"
fi

dnl Find makedepend somewhere.

AC_SUBST(MAKEDEPEND)
MAKEDEPEND="$(which makedepend)"

# Try to desperately find makedepend.
# Set MAKEDEPEND to the shipped makedepend binary. This will not
# exist in nx-libs-lite, though, in which case MAKEDEPEND
# will stay empty.
if test -z "${MAKEDEPEND}"; then
  if test -x "../nx-X11/config/makedepend/makedepend"; then
    MAKEDEPEND="../nx-X11/config/makedepend/makedepend"
  fi
fi

AC_OUTPUT(Makefile)