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xdelta.m4
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xdelta.m4
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# Configure paths for XDELTA
# Owen Taylor 97-11-3
dnl AM_PATH_XDELTA([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
dnl Test for XDELTA, and define XDELTA_CFLAGS and XDELTA_LIBS, if "gmodule" or
dnl
AC_DEFUN(AM_PATH_XDELTA,
[dnl
dnl Get the cflags and libraries from the xdelta-config script
dnl
AC_ARG_WITH(xdelta-prefix,[ --with-xdelta-prefix=PFX Prefix where XDELTA is installed (optional)],
xdelta_config_prefix="$withval", xdelta_config_prefix="")
AC_ARG_WITH(xdelta-exec-prefix,[ --with-xdelta-exec-prefix=PFX Exec prefix where XDELTA is installed (optional)],
xdelta_config_exec_prefix="$withval", xdelta_config_exec_prefix="")
AC_ARG_ENABLE(xdeltatest, [ --disable-xdeltatest Do not try to compile and run a test XDELTA program],
, enable_xdeltatest=yes)
if test x$xdelta_config_exec_prefix != x ; then
xdelta_config_args="$xdelta_config_args --exec-prefix=$xdelta_config_exec_prefix"
if test x${XDELTA_CONFIG+set} != xset ; then
XDELTA_CONFIG=$xdelta_config_exec_prefix/bin/xdelta-config
fi
fi
if test x$xdelta_config_prefix != x ; then
xdelta_config_args="$xdelta_config_args --prefix=$xdelta_config_prefix"
if test x${XDELTA_CONFIG+set} != xset ; then
XDELTA_CONFIG=$xdelta_config_prefix/bin/xdelta-config
fi
fi
AC_PATH_PROG(XDELTA_CONFIG, xdelta-config, no)
min_xdelta_version=ifelse([$1], ,1.0.0,$1)
AC_MSG_CHECKING(for XDELTA - version >= $min_xdelta_version)
no_xdelta=""
if test "$XDELTA_CONFIG" = "no" ; then
no_xdelta=yes
else
XDELTA_CFLAGS=`$XDELTA_CONFIG $xdelta_config_args --cflags`
XDELTA_LIBS=`$XDELTA_CONFIG $xdelta_config_args --libs`
xdelta_config_major_version=`$XDELTA_CONFIG $xdelta_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
xdelta_config_minor_version=`$XDELTA_CONFIG $xdelta_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
xdelta_config_micro_version=`$XDELTA_CONFIG $xdelta_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_xdeltatest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $XDELTA_CFLAGS"
LIBS="$LIBS $XDELTA_LIBS"
dnl
dnl Now check if the installed XDELTA is sufficiently new. (Also sanity
dnl checks the results of xdelta-config to some extent
dnl
rm -f conf.xdeltatest
AC_TRY_RUN([
#include <xdelta.h>
#include <stdio.h>
#include <stdlib.h>
int
main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.xdeltatest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = g_strdup("$min_xdelta_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string\n", "$min_xdelta_version");
exit(1);
}
if ((xdelta_major_version != $xdelta_config_major_version) ||
(xdelta_minor_version != $xdelta_config_minor_version) ||
(xdelta_micro_version != $xdelta_config_micro_version))
{
printf("\n*** 'xdelta-config --version' returned %d.%d.%d, but XDELTA (%d.%d.%d)\n",
$xdelta_config_major_version, $xdelta_config_minor_version, $xdelta_config_micro_version,
xdelta_major_version, xdelta_minor_version, xdelta_micro_version);
printf ("*** was found! If xdelta-config was correct, then it is best\n");
printf ("*** to remove the old version of XDELTA. You may also be able to fix the error\n");
printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
printf("*** required on your system.\n");
printf("*** If xdelta-config was wrong, set the environment variable XDELTA_CONFIG\n");
printf("*** to point to the correct copy of xdelta-config, and remove the file config.cache\n");
printf("*** before re-running configure\n");
}
else if ((xdelta_major_version != XDELTA_MAJOR_VERSION) ||
(xdelta_minor_version != XDELTA_MINOR_VERSION) ||
(xdelta_micro_version != XDELTA_MICRO_VERSION))
{
printf("*** XDELTA header files (version %d.%d.%d) do not match\n",
XDELTA_MAJOR_VERSION, XDELTA_MINOR_VERSION, XDELTA_MICRO_VERSION);
printf("*** library (version %d.%d.%d)\n",
xdelta_major_version, xdelta_minor_version, xdelta_micro_version);
}
else
{
if ((xdelta_major_version > major) ||
((xdelta_major_version == major) && (xdelta_minor_version > minor)) ||
((xdelta_major_version == major) && (xdelta_minor_version == minor) && (xdelta_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** An old version of XDELTA (%d.%d.%d) was found.\n",
xdelta_major_version, xdelta_minor_version, xdelta_micro_version);
printf("*** You need a version of XDELTA newer than %d.%d.%d. The latest version of\n",
major, minor, micro);
printf("*** XDELTA is always available from ftp://ftp.gtk.org.\n");
printf("***\n");
printf("*** If you have already installed a sufficiently new version, this error\n");
printf("*** probably means that the wrong copy of the xdelta-config shell script is\n");
printf("*** being found. The easiest way to fix this is to remove the old version\n");
printf("*** of XDELTA, but you can also set the XDELTA_CONFIG environment to point to the\n");
printf("*** correct copy of xdelta-config. (In this case, you will have to\n");
printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
printf("*** so that the correct libraries are found at run-time))\n");
}
}
return 1;
}
],, no_xdelta=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_xdelta" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$XDELTA_CONFIG" = "no" ; then
echo "*** The xdelta-config script installed by XDELTA could not be found"
echo "*** If XDELTA was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the XDELTA_CONFIG environment variable to the"
echo "*** full path to xdelta-config."
else
if test -f conf.xdeltatest ; then
:
else
echo "*** Could not run XDELTA test program, checking why..."
CFLAGS="$CFLAGS $XDELTA_CFLAGS"
LIBS="$LIBS $XDELTA_LIBS"
AC_TRY_LINK([
#include <xdelta.h>
#include <stdio.h>
], [ return ((xdelta_major_version) || (xdelta_minor_version) || (xdelta_micro_version)); ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding XDELTA or finding the wrong"
echo "*** version of XDELTA. If it is not finding XDELTA, 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 "***"
echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
echo "*** came with the system with the command"
echo "***"
echo "*** rpm --erase --nodeps gtk gtk-devel" ],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means XDELTA was incorrectly installed"
echo "*** or that you have moved XDELTA since it was installed. In the latter case, you"
echo "*** may want to edit the xdelta-config script: $XDELTA_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
XDELTA_CFLAGS=""
XDELTA_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(XDELTA_CFLAGS)
AC_SUBST(XDELTA_LIBS)
rm -f conf.xdeltatest
])