Add libxml2.m4 for convenience to build nghttp2 from git repo easily
This commit is contained in:
Tatsuhiro Tsujikawa
parent
3144f7de72
commit
c506386997
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# Configure paths for LIBXML2
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# Mike Hommey 2004-06-19
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# use CPPFLAGS instead of CFLAGS
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# Toshio Kuratomi 2001-04-21
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# Adapted from:
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# Configure paths for GLIB
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# Owen Taylor 97-11-3
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dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
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dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS
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dnl
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AC_DEFUN([AM_PATH_XML2],[
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AC_ARG_WITH(xml-prefix,
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[ --with-xml-prefix=PFX Prefix where libxml is installed (optional)],
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xml_config_prefix="$withval", xml_config_prefix="")
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AC_ARG_WITH(xml-exec-prefix,
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[ --with-xml-exec-prefix=PFX Exec prefix where libxml is installed (optional)],
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xml_config_exec_prefix="$withval", xml_config_exec_prefix="")
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AC_ARG_ENABLE(xmltest,
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[ --disable-xmltest Do not try to compile and run a test LIBXML program],,
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enable_xmltest=yes)
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if test x$xml_config_exec_prefix != x ; then
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xml_config_args="$xml_config_args"
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if test x${XML2_CONFIG+set} != xset ; then
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XML2_CONFIG=$xml_config_exec_prefix/bin/xml2-config
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fi
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fi
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if test x$xml_config_prefix != x ; then
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xml_config_args="$xml_config_args --prefix=$xml_config_prefix"
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if test x${XML2_CONFIG+set} != xset ; then
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XML2_CONFIG=$xml_config_prefix/bin/xml2-config
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fi
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fi
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AC_PATH_PROG(XML2_CONFIG, xml2-config, no)
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min_xml_version=ifelse([$1], ,2.0.0,[$1])
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AC_MSG_CHECKING(for libxml - version >= $min_xml_version)
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no_xml=""
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if test "$XML2_CONFIG" = "no" ; then
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no_xml=yes
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else
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XML_CPPFLAGS=`$XML2_CONFIG $xml_config_args --cflags`
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XML_LIBS=`$XML2_CONFIG $xml_config_args --libs`
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xml_config_major_version=`$XML2_CONFIG $xml_config_args --version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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xml_config_minor_version=`$XML2_CONFIG $xml_config_args --version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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xml_config_micro_version=`$XML2_CONFIG $xml_config_args --version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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if test "x$enable_xmltest" = "xyes" ; then
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ac_save_CPPFLAGS="$CPPFLAGS"
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ac_save_LIBS="$LIBS"
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CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
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LIBS="$XML_LIBS $LIBS"
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dnl
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dnl Now check if the installed libxml is sufficiently new.
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dnl (Also sanity checks the results of xml2-config to some extent)
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dnl
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rm -f conf.xmltest
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AC_TRY_RUN([
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <libxml/xmlversion.h>
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int
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main()
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{
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int xml_major_version, xml_minor_version, xml_micro_version;
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int major, minor, micro;
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char *tmp_version;
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system("touch conf.xmltest");
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/* Capture xml2-config output via autoconf/configure variables */
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/* HP/UX 9 (%@#!) writes to sscanf strings */
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tmp_version = (char *)strdup("$min_xml_version");
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if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
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printf("%s, bad version string from xml2-config\n", "$min_xml_version");
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exit(1);
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}
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free(tmp_version);
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/* Capture the version information from the header files */
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tmp_version = (char *)strdup(LIBXML_DOTTED_VERSION);
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if (sscanf(tmp_version, "%d.%d.%d", &xml_major_version, &xml_minor_version, &xml_micro_version) != 3) {
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printf("%s, bad version string from libxml includes\n", "LIBXML_DOTTED_VERSION");
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exit(1);
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}
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free(tmp_version);
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/* Compare xml2-config output to the libxml headers */
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if ((xml_major_version != $xml_config_major_version) ||
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(xml_minor_version != $xml_config_minor_version) ||
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(xml_micro_version != $xml_config_micro_version))
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{
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printf("*** libxml header files (version %d.%d.%d) do not match\n",
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xml_major_version, xml_minor_version, xml_micro_version);
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printf("*** xml2-config (version %d.%d.%d)\n",
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$xml_config_major_version, $xml_config_minor_version, $xml_config_micro_version);
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return 1;
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}
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/* Compare the headers to the library to make sure we match */
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/* Less than ideal -- doesn't provide us with return value feedback,
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* only exits if there's a serious mismatch between header and library.
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*/
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LIBXML_TEST_VERSION;
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/* Test that the library is greater than our minimum version */
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if ((xml_major_version > major) ||
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((xml_major_version == major) && (xml_minor_version > minor)) ||
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((xml_major_version == major) && (xml_minor_version == minor) &&
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(xml_micro_version >= micro)))
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{
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return 0;
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}
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else
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{
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printf("\n*** An old version of libxml (%d.%d.%d) was found.\n",
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xml_major_version, xml_minor_version, xml_micro_version);
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printf("*** You need a version of libxml newer than %d.%d.%d. The latest version of\n",
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major, minor, micro);
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printf("*** libxml is always available from ftp://ftp.xmlsoft.org.\n");
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printf("***\n");
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printf("*** If you have already installed a sufficiently new version, this error\n");
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printf("*** probably means that the wrong copy of the xml2-config shell script is\n");
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printf("*** being found. The easiest way to fix this is to remove the old version\n");
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printf("*** of LIBXML, but you can also set the XML2_CONFIG environment to point to the\n");
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printf("*** correct copy of xml2-config. (In this case, you will have to\n");
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printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
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printf("*** so that the correct libraries are found at run-time))\n");
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}
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return 1;
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}
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],, no_xml=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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CPPFLAGS="$ac_save_CPPFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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fi
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if test "x$no_xml" = x ; then
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AC_MSG_RESULT(yes (version $xml_config_major_version.$xml_config_minor_version.$xml_config_micro_version))
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ifelse([$2], , :, [$2])
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else
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AC_MSG_RESULT(no)
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if test "$XML2_CONFIG" = "no" ; then
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echo "*** The xml2-config script installed by LIBXML could not be found"
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echo "*** If libxml was installed in PREFIX, make sure PREFIX/bin is in"
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echo "*** your path, or set the XML2_CONFIG environment variable to the"
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echo "*** full path to xml2-config."
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else
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if test -f conf.xmltest ; then
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:
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else
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echo "*** Could not run libxml test program, checking why..."
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CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
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LIBS="$LIBS $XML_LIBS"
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AC_TRY_LINK([
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#include <libxml/xmlversion.h>
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#include <stdio.h>
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], [ LIBXML_TEST_VERSION; return 0;],
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[ echo "*** The test program compiled, but did not run. This usually means"
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echo "*** that the run-time linker is not finding LIBXML or finding the wrong"
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echo "*** version of LIBXML. If it is not finding LIBXML, you'll need to set your"
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echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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echo "*** to the installed location Also, make sure you have run ldconfig if that"
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echo "*** is required on your system"
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echo "***"
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echo "*** If you have an old version installed, it is best to remove it, although"
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echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
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[ echo "*** The test program failed to compile or link. See the file config.log for the"
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echo "*** exact error that occured. This usually means LIBXML was incorrectly installed"
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echo "*** or that you have moved LIBXML since it was installed. In the latter case, you"
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echo "*** may want to edit the xml2-config script: $XML2_CONFIG" ])
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CPPFLAGS="$ac_save_CPPFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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fi
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XML_CPPFLAGS=""
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XML_LIBS=""
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ifelse([$3], , :, [$3])
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fi
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AC_SUBST(XML_CPPFLAGS)
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AC_SUBST(XML_LIBS)
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rm -f conf.xmltest
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])
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