pjs/other-licenses/libart_lgpl/libart.m4

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# Configure paths for LIBART
# Raph Levien 98-11-18
# stolen from Manish Singh 98-9-30
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
dnl AM_PATH_LIBART([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for LIBART, and define LIBART_CFLAGS and LIBART_LIBS
dnl
AC_DEFUN(AM_PATH_LIBART,
[dnl
dnl Get the cflags and libraries from the libart-config script
dnl
AC_ARG_WITH(libart-prefix,[ --with-libart-prefix=PFX Prefix where LIBART is installed (optional)],
libart_prefix="$withval", libart_prefix="")
AC_ARG_WITH(libart-exec-prefix,[ --with-libart-exec-prefix=PFX Exec prefix where LIBART is installed (optional)],
libart_exec_prefix="$withval", libart_exec_prefix="")
AC_ARG_ENABLE(libarttest, [ --disable-libarttest Do not try to compile and run a test LIBART program],
, enable_libarttest=yes)
if test x$libart_exec_prefix != x ; then
libart_args="$libart_args --exec-prefix=$libart_exec_prefix"
if test x${LIBART_CONFIG+set} != xset ; then
LIBART_CONFIG=$libart_exec_prefix/bin/libart-config
fi
fi
if test x$libart_prefix != x ; then
libart_args="$libart_args --prefix=$libart_prefix"
if test x${LIBART_CONFIG+set} != xset ; then
LIBART_CONFIG=$libart_prefix/bin/libart-config
fi
fi
AC_PATH_PROG(LIBART_CONFIG, libart-config, no)
min_libart_version=ifelse([$1], ,0.2.5,$1)
AC_MSG_CHECKING(for LIBART - version >= $min_libart_version)
no_libart=""
if test "$LIBART_CONFIG" = "no" ; then
no_libart=yes
else
LIBART_CFLAGS=`$LIBART_CONFIG $libartconf_args --cflags`
LIBART_LIBS=`$LIBART_CONFIG $libartconf_args --libs`
libart_major_version=`$LIBART_CONFIG $libart_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
libart_minor_version=`$LIBART_CONFIG $libart_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
libart_micro_version=`$LIBART_CONFIG $libart_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_libarttest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $LIBART_CFLAGS"
LIBS="$LIBS $LIBART_LIBS"
dnl
dnl Now check if the installed LIBART is sufficiently new. (Also sanity
dnl checks the results of libart-config to some extent
dnl
rm -f conf.libarttest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libart_lgpl/libart.h>
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.libarttest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup("$min_libart_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
printf("%s, bad version string\n", "$min_libart_version");
exit(1);
}
if (($libart_major_version > major) ||
(($libart_major_version == major) && ($libart_minor_version > minor)) ||
(($libart_major_version == major) && ($libart_minor_version == minor) && ($libart_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** 'libart-config --version' returned %d.%d.%d, but the minimum version\n", $libart_major_version, $libart_minor_version, $libart_micro_version);
printf("*** of LIBART required is %d.%d.%d. If libart-config is correct, then it is\n", major, minor, micro);
printf("*** best to upgrade to the required version.\n");
printf("*** If libart-config was wrong, set the environment variable LIBART_CONFIG\n");
printf("*** to point to the correct copy of libart-config, and remove the file\n");
printf("*** config.cache before re-running configure\n");
return 1;
}
}
],, no_libart=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_libart" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$LIBART_CONFIG" = "no" ; then
echo "*** The libart-config script installed by LIBART could not be found"
echo "*** If LIBART was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the LIBART_CONFIG environment variable to the"
echo "*** full path to libart-config."
else
if test -f conf.libarttest ; then
:
else
echo "*** Could not run LIBART test program, checking why..."
CFLAGS="$CFLAGS $LIBART_CFLAGS"
LIBS="$LIBS $LIBART_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <libart_lgpl/libart.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding LIBART or finding the wrong"
echo "*** version of LIBART. If it is not finding LIBART, 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 LIBART was incorrectly installed"
echo "*** or that you have moved LIBART since it was installed. In the latter case, you"
echo "*** may want to edit the libart-config script: $LIBART_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
LIBART_CFLAGS=""
LIBART_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(LIBART_CFLAGS)
AC_SUBST(LIBART_LIBS)
rm -f conf.libarttest
])