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libxml2.m4
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libxml2.m4
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# Configure paths for LIBXML2
# Mike Hommey 2004-06-19
# use CPPFLAGS instead of CFLAGS
# Toshio Kuratomi 2001-04-21
# Adapted from:
# Configure paths for GLIB
# Owen Taylor 97-11-3
dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS
dnl
AC_DEFUN([AM_PATH_XML2],[
AC_ARG_WITH(xml-prefix,
[ --with-xml-prefix=PFX Prefix where libxml is installed (optional)],
xml_config_prefix="$withval", xml_config_prefix="")
AC_ARG_WITH(xml-exec-prefix,
[ --with-xml-exec-prefix=PFX Exec prefix where libxml is installed (optional)],
xml_config_exec_prefix="$withval", xml_config_exec_prefix="")
AC_ARG_ENABLE(xmltest,
[ --disable-xmltest Do not try to compile and run a test LIBXML program],,
enable_xmltest=yes)
if test x$xml_config_exec_prefix != x ; then
xml_config_args="$xml_config_args"
if test x${XML2_CONFIG+set} != xset ; then
XML2_CONFIG=$xml_config_exec_prefix/bin/xml2-config
fi
fi
if test x$xml_config_prefix != x ; then
xml_config_args="$xml_config_args --prefix=$xml_config_prefix"
if test x${XML2_CONFIG+set} != xset ; then
XML2_CONFIG=$xml_config_prefix/bin/xml2-config
fi
fi
AC_PATH_PROG(XML2_CONFIG, xml2-config, no)
min_xml_version=ifelse([$1], ,2.0.0,[$1])
AC_MSG_CHECKING(for libxml - version >= $min_xml_version)
no_xml=""
if test "$XML2_CONFIG" = "no" ; then
no_xml=yes
else
XML_CPPFLAGS=`$XML2_CONFIG $xml_config_args --cflags`
XML_LIBS=`$XML2_CONFIG $xml_config_args --libs`
xml_config_major_version=`$XML2_CONFIG $xml_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
xml_config_minor_version=`$XML2_CONFIG $xml_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
xml_config_micro_version=`$XML2_CONFIG $xml_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_xmltest" = "xyes" ; then
ac_save_CPPFLAGS="$CPPFLAGS"
ac_save_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
LIBS="$XML_LIBS $LIBS"
dnl
dnl Now check if the installed libxml is sufficiently new.
dnl (Also sanity checks the results of xml2-config to some extent)
dnl
rm -f conf.xmltest
AC_TRY_RUN([
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <libxml/xmlversion.h>
int
main()
{
int xml_major_version, xml_minor_version, xml_micro_version;
int major, minor, micro;
char *tmp_version;
system("touch conf.xmltest");
/* Capture xml2-config output via autoconf/configure variables */
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = (char *)strdup("$min_xml_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string from xml2-config\n", "$min_xml_version");
exit(1);
}
free(tmp_version);
/* Capture the version information from the header files */
tmp_version = (char *)strdup(LIBXML_DOTTED_VERSION);
if (sscanf(tmp_version, "%d.%d.%d", &xml_major_version, &xml_minor_version, &xml_micro_version) != 3) {
printf("%s, bad version string from libxml includes\n", "LIBXML_DOTTED_VERSION");
exit(1);
}
free(tmp_version);
/* Compare xml2-config output to the libxml headers */
if ((xml_major_version != $xml_config_major_version) ||
(xml_minor_version != $xml_config_minor_version) ||
(xml_micro_version != $xml_config_micro_version))
{
printf("*** libxml header files (version %d.%d.%d) do not match\n",
xml_major_version, xml_minor_version, xml_micro_version);
printf("*** xml2-config (version %d.%d.%d)\n",
$xml_config_major_version, $xml_config_minor_version, $xml_config_micro_version);
return 1;
}
/* Compare the headers to the library to make sure we match */
/* Less than ideal -- doesn't provide us with return value feedback,
* only exits if there's a serious mismatch between header and library.
*/
LIBXML_TEST_VERSION;
/* Test that the library is greater than our minimum version */
if ((xml_major_version > major) ||
((xml_major_version == major) && (xml_minor_version > minor)) ||
((xml_major_version == major) && (xml_minor_version == minor) &&
(xml_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** An old version of libxml (%d.%d.%d) was found.\n",
xml_major_version, xml_minor_version, xml_micro_version);
printf("*** You need a version of libxml newer than %d.%d.%d. The latest version of\n",
major, minor, micro);
printf("*** libxml is always available from ftp://ftp.xmlsoft.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 xml2-config shell script is\n");
printf("*** being found. The easiest way to fix this is to remove the old version\n");
printf("*** of LIBXML, but you can also set the XML2_CONFIG environment to point to the\n");
printf("*** correct copy of xml2-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_xml=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_xml" = x ; then
AC_MSG_RESULT(yes (version $xml_config_major_version.$xml_config_minor_version.$xml_config_micro_version))
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$XML2_CONFIG" = "no" ; then
echo "*** The xml2-config script installed by LIBXML could not be found"
echo "*** If libxml was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the XML2_CONFIG environment variable to the"
echo "*** full path to xml2-config."
else
if test -f conf.xmltest ; then
:
else
echo "*** Could not run libxml test program, checking why..."
CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
LIBS="$LIBS $XML_LIBS"
AC_TRY_LINK([
#include <libxml/xmlversion.h>
#include <stdio.h>
], [ LIBXML_TEST_VERSION; return 0;],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding LIBXML or finding the wrong"
echo "*** version of LIBXML. If it is not finding LIBXML, 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 LIBXML was incorrectly installed"
echo "*** or that you have moved LIBXML since it was installed. In the latter case, you"
echo "*** may want to edit the xml2-config script: $XML2_CONFIG" ])
CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
XML_CPPFLAGS=""
XML_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(XML_CPPFLAGS)
AC_SUBST(XML_LIBS)
rm -f conf.xmltest
])