[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], , :, [$3])
  fi
  AC_SUBST(XML_CPPFLAGS)
  AC_SUBST(XML_LIBS)
  rm -f conf.xmltest
])
Commit	Line	Data
6c1494fd JG	1	# LICENSE
	2	#
	3	# The MIT License (MIT)
	4	#
	5	# Permission is hereby granted, free of charge, to any person obtaining a copy
	6	# of this software and associated documentation files (the "Software"), to deal
	7	# in the Software without restriction, including without limitation the rights
	8	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	9	# copies of the Software, and to permit persons to whom the Software is
	10	# furnished to do so, subject to the following conditions:
	11	#
	12	# The above copyright notice and this permission notice shall be included in
	13	# all copies or substantial portions of the Software.
	14	#
	15	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	18	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	20	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	21	# THE SOFTWARE.
	22	#
	23	# Taken from the libxml2 repository
	24	#
	25	# Configure paths for LIBXML2
	26	# Mike Hommey 2004-06-19
	27	# use CPPFLAGS instead of CFLAGS
	28	# Toshio Kuratomi 2001-04-21
	29	# Adapted from:
	30	# Configure paths for GLIB
	31	# Owen Taylor 97-11-3
	32
	33	dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
	34	dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS
	35	dnl
	36	AC_DEFUN([AM_PATH_XML2],[
	37	AC_ARG_WITH(xml-prefix,
	38	[ --with-xml-prefix=PFX Prefix where libxml is installed (optional)],
	39	xml_config_prefix="$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	])