[lttng-tools.git] / config / libxml.m4

# LICENSE
#
#   The MIT License (MIT)
#
#   Permission is hereby granted, free of charge, to any person obtaining a copy
#   of this software and associated documentation files (the "Software"), to deal
#   in the Software without restriction, including without limitation the rights
#   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#   copies of the Software, and to permit persons to whom the Software is
#   furnished to do so, subject to the following conditions:
#
#   The above copyright notice and this permission notice shall be included in
#   all copies or substantial portions of the Software.
#
#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#   THE SOFTWARE.
#
# Taken from the libxml2 repository
#
# 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("$min_xml_version");
  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string from xml2-config\n", "$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], , :, [$3])
  fi
  AC_SUBST(XML_CPPFLAGS)
  AC_SUBST(XML_LIBS)
  rm -f conf.xmltest
])
Commit	Line	Data
	1	# LICENSE
	2	#
	3	# The MIT License (MIT)
	4	#
	5	# Permission is hereby granted, free of charge, to any person obtaining a copy
	6	# of this software and associated documentation files (the "Software"), to deal
	7	# in the Software without restriction, including without limitation the rights
	8	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	9	# copies of the Software, and to permit persons to whom the Software is
	10	# furnished to do so, subject to the following conditions:
	11	#
	12	# The above copyright notice and this permission notice shall be included in
	13	# all copies or substantial portions of the Software.
	14	#
	15	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	18	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	20	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	21	# THE SOFTWARE.
	22	#
	23	# Taken from the libxml2 repository
	24	#
	25	# Configure paths for LIBXML2
	26	# Mike Hommey 2004-06-19
	27	# use CPPFLAGS instead of CFLAGS
	28	# Toshio Kuratomi 2001-04-21
	29	# Adapted from:
	30	# Configure paths for GLIB
	31	# Owen Taylor 97-11-3
	32
	33	dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
	34	dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS
	35	dnl
	36	AC_DEFUN([AM_PATH_XML2],[
	37	AC_ARG_WITH(xml-prefix,
	38	[ --with-xml-prefix=PFX Prefix where libxml is installed (optional)],
	39	xml_config_prefix="$withval", xml_config_prefix="")
	40	AC_ARG_WITH(xml-exec-prefix,
	41	[ --with-xml-exec-prefix=PFX Exec prefix where libxml is installed (optional)],
	42	xml_config_exec_prefix="$withval", xml_config_exec_prefix="")
	43	AC_ARG_ENABLE(xmltest,
	44	[ --disable-xmltest Do not try to compile and run a test LIBXML program],,
	45	enable_xmltest=yes)
	46
	47	if test x$xml_config_exec_prefix != x ; then
	48	xml_config_args="$xml_config_args"
	49	if test x${XML2_CONFIG+set} != xset ; then
	50	XML2_CONFIG=$xml_config_exec_prefix/bin/xml2-config
	51	fi
	52	fi
	53	if test x$xml_config_prefix != x ; then
	54	xml_config_args="$xml_config_args --prefix=$xml_config_prefix"
	55	if test x${XML2_CONFIG+set} != xset ; then
	56	XML2_CONFIG=$xml_config_prefix/bin/xml2-config
	57	fi
	58	fi
	59
	60	AC_PATH_PROG(XML2_CONFIG, xml2-config, no)
	61	min_xml_version=ifelse([$1], ,2.0.0,[$1])
	62	AC_MSG_CHECKING(for libxml - version >= $min_xml_version)
	63	no_xml=""
	64	if test "$XML2_CONFIG" = "no" ; then
	65	no_xml=yes
	66	else
	67	XML_CPPFLAGS=`$XML2_CONFIG $xml_config_args --cflags`
	68	XML_LIBS=`$XML2_CONFIG $xml_config_args --libs`
	69	xml_config_major_version=`$XML2_CONFIG $xml_config_args --version \| \
	70	sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]*\)/\1/'`
	71	xml_config_minor_version=`$XML2_CONFIG $xml_config_args --version \| \
	72	sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]*\)/\2/'`
	73	xml_config_micro_version=`$XML2_CONFIG $xml_config_args --version \| \
	74	sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]*\)/\3/'`
	75	if test "x$enable_xmltest" = "xyes" ; then
	76	ac_save_CPPFLAGS="$CPPFLAGS"
	77	ac_save_LIBS="$LIBS"
	78	CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
	79	LIBS="$XML_LIBS $LIBS"
	80	dnl
	81	dnl Now check if the installed libxml is sufficiently new.
	82	dnl (Also sanity checks the results of xml2-config to some extent)
	83	dnl
	84	rm -f conf.xmltest
	85	AC_TRY_RUN([
	86	#include <stdlib.h>
	87	#include <stdio.h>
	88	#include <string.h>
	89	#include <libxml/xmlversion.h>
	90
	91	int
	92	main()
	93	{
	94	int xml_major_version, xml_minor_version, xml_micro_version;
	95	int major, minor, micro;
	96	char *tmp_version;
	97
	98	system("touch conf.xmltest");
	99
	100	/* Capture xml2-config output via autoconf/configure variables */
	101	/* HP/UX 9 (%@#!) writes to sscanf strings */
	102	tmp_version = (char *)strdup("$min_xml_version");
	103	if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
	104	printf("%s, bad version string from xml2-config\n", "$min_xml_version");
	105	exit(1);
	106	}
	107	free(tmp_version);
	108
	109	/* Capture the version information from the header files */
	110	tmp_version = (char *)strdup(LIBXML_DOTTED_VERSION);
	111	if (sscanf(tmp_version, "%d.%d.%d", &xml_major_version, &xml_minor_version, &xml_micro_version) != 3) {
	112	printf("%s, bad version string from libxml includes\n", "LIBXML_DOTTED_VERSION");
	113	exit(1);
	114	}
	115	free(tmp_version);
	116
	117	/* Compare xml2-config output to the libxml headers */
	118	if ((xml_major_version != $xml_config_major_version) \|\|
	119	(xml_minor_version != $xml_config_minor_version) \|\|
	120	(xml_micro_version != $xml_config_micro_version))
	121	{
	122	printf("*** libxml header files (version %d.%d.%d) do not match\n",
	123	xml_major_version, xml_minor_version, xml_micro_version);
	124	printf("*** xml2-config (version %d.%d.%d)\n",
	125	$xml_config_major_version, $xml_config_minor_version, $xml_config_micro_version);
	126	return 1;
	127	}
	128	/* Compare the headers to the library to make sure we match */
	129	/* Less than ideal -- doesn't provide us with return value feedback,
	130	* only exits if there's a serious mismatch between header and library.
	131	*/
	132	LIBXML_TEST_VERSION;
	133
	134	/* Test that the library is greater than our minimum version */
	135	if ((xml_major_version > major) \|\|
	136	((xml_major_version == major) && (xml_minor_version > minor)) \|\|
	137	((xml_major_version == major) && (xml_minor_version == minor) &&
	138	(xml_micro_version >= micro)))
	139	{
	140	return 0;
	141	}
	142	else
	143	{
	144	printf("\n*** An old version of libxml (%d.%d.%d) was found.\n",
	145	xml_major_version, xml_minor_version, xml_micro_version);
	146	printf("*** You need a version of libxml newer than %d.%d.%d. The latest version of\n",
	147	major, minor, micro);
	148	printf("*** libxml is always available from ftp://ftp.xmlsoft.org.\n");
	149	printf("***\n");
	150	printf("*** If you have already installed a sufficiently new version, this error\n");
	151	printf("*** probably means that the wrong copy of the xml2-config shell script is\n");
	152	printf("*** being found. The easiest way to fix this is to remove the old version\n");
	153	printf("*** of LIBXML, but you can also set the XML2_CONFIG environment to point to the\n");
	154	printf("*** correct copy of xml2-config. (In this case, you will have to\n");
	155	printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
	156	printf("*** so that the correct libraries are found at run-time))\n");
	157	}
	158	return 1;
	159	}
	160	],, no_xml=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
	161	CPPFLAGS="$ac_save_CPPFLAGS"
	162	LIBS="$ac_save_LIBS"
	163	fi
	164	fi
	165
	166	if test "x$no_xml" = x ; then
	167	AC_MSG_RESULT(yes (version $xml_config_major_version.$xml_config_minor_version.$xml_config_micro_version))
	168	ifelse([$2], , :, [$2])
	169	else
	170	AC_MSG_RESULT(no)
	171	if test "$XML2_CONFIG" = "no" ; then
	172	echo "*** The xml2-config script installed by LIBXML could not be found"
	173	echo "*** If libxml was installed in PREFIX, make sure PREFIX/bin is in"
	174	echo "*** your path, or set the XML2_CONFIG environment variable to the"
	175	echo "*** full path to xml2-config."
	176	else
	177	if test -f conf.xmltest ; then
	178	:
	179	else
	180	echo "*** Could not run libxml test program, checking why..."
	181	CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS"
	182	LIBS="$LIBS $XML_LIBS"
	183	AC_TRY_LINK([
	184	#include <libxml/xmlversion.h>
	185	#include <stdio.h>
	186	], [ LIBXML_TEST_VERSION; return 0;],
	187	[ echo "*** The test program compiled, but did not run. This usually means"
	188	echo "*** that the run-time linker is not finding LIBXML or finding the wrong"
	189	echo "*** version of LIBXML. If it is not finding LIBXML, you'll need to set your"
	190	echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
	191	echo "*** to the installed location Also, make sure you have run ldconfig if that"
	192	echo "*** is required on your system"
	193	echo "***"
	194	echo "*** If you have an old version installed, it is best to remove it, although"
	195	echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
	196	[ echo "*** The test program failed to compile or link. See the file config.log for the"
	197	echo "*** exact error that occured. This usually means LIBXML was incorrectly installed"
	198	echo "*** or that you have moved LIBXML since it was installed. In the latter case, you"
	199	echo "*** may want to edit the xml2-config script: $XML2_CONFIG" ])
	200	CPPFLAGS="$ac_save_CPPFLAGS"
	201	LIBS="$ac_save_LIBS"
	202	fi
	203	fi
	204
	205	XML_CPPFLAGS=""
	206	XML_LIBS=""
	207	ifelse([$3], , :, [$3])
	208	fi
	209	AC_SUBST(XML_CPPFLAGS)
	210	AC_SUBST(XML_LIBS)
	211	rm -f conf.xmltest
	212	])