ref: c7a3e9c30833d032d5c74751c99731cdf132174e
dir: /external/SDL2/acinclude/esd.m4/
##############################################################################
#
# --- esd.m4 ---
#
# Configure paths for ESD
# Manish Singh 98-9-30
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
dnl
AC_DEFUN([AM_PATH_ESD],
[dnl
dnl Get the cflags and libraries from the esd-config script
dnl
AC_ARG_WITH(esd-prefix,[ --with-esd-prefix=PFX Prefix where ESD is installed (optional)],
esd_prefix="$withval", esd_prefix="")
AC_ARG_WITH(esd-exec-prefix,[ --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
esd_exec_prefix="$withval", esd_exec_prefix="")
AC_ARG_ENABLE(esdtest, [ --disable-esdtest Do not try to compile and run a test ESD program],
, enable_esdtest=yes)
if test x$esd_exec_prefix != x ; then
esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
if test x${ESD_CONFIG+set} != xset ; then
ESD_CONFIG=$esd_exec_prefix/bin/esd-config
fi
fi
if test x$esd_prefix != x ; then
esd_args="$esd_args --prefix=$esd_prefix"
if test x${ESD_CONFIG+set} != xset ; then
ESD_CONFIG=$esd_prefix/bin/esd-config
fi
fi
AC_PATH_PROG(ESD_CONFIG, esd-config, no)
min_esd_version=ifelse([$1], ,0.2.7,$1)
AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
no_esd=""
if test "$ESD_CONFIG" = "no" ; then
no_esd=yes
else
ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
esd_major_version=`$ESD_CONFIG $esd_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
esd_minor_version=`$ESD_CONFIG $esd_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_esdtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $ESD_CFLAGS"
LIBS="$LIBS $ESD_LIBS"
dnl
dnl Now check if the installed ESD is sufficiently new. (Also sanity
dnl checks the results of esd-config to some extent
dnl
rm -f conf.esdtest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <esd.h>
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.esdtest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup("$min_esd_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string\n", "$min_esd_version");
exit(1);
}
if (($esd_major_version > major) ||
(($esd_major_version == major) && ($esd_minor_version > minor)) ||
(($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
printf("*** best to upgrade to the required version.\n");
printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
printf("*** to point to the correct copy of esd-config, and remove the file\n");
printf("*** config.cache before re-running configure\n");
return 1;
}
}
],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_esd" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$ESD_CONFIG" = "no" ; then
echo "*** The esd-config script installed by ESD could not be found"
echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the ESD_CONFIG environment variable to the"
echo "*** full path to esd-config."
else
if test -f conf.esdtest ; then
:
else
echo "*** Could not run ESD test program, checking why..."
CFLAGS="$CFLAGS $ESD_CFLAGS"
LIBS="$LIBS $ESD_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <esd.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding ESD or finding the wrong"
echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means ESD was incorrectly installed"
echo "*** or that you have moved ESD since it was installed. In the latter case, you"
echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
ESD_CFLAGS=""
ESD_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(ESD_CFLAGS)
AC_SUBST(ESD_LIBS)
rm -f conf.esdtest
])