libxml.m4
1 # Configure paths for LIBXML2 2 # Mike Hommey 2004-06-19 3 # use CPPFLAGS instead of CFLAGS 4 # Toshio Kuratomi 2001-04-21 5 # Adapted from: 6 # Configure paths for GLIB 7 # Owen Taylor 97-11-3 8 9 dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) 10 dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS 11 dnl 12 AC_DEFUN([AM_PATH_XML2],[ 13 AC_ARG_WITH(xml-prefix, 14 [ --with-xml-prefix=PFX Prefix where libxml is installed (optional)], 15 xml_config_prefix="$withval", xml_config_prefix="") 16 AC_ARG_WITH(xml-exec-prefix, 17 [ --with-xml-exec-prefix=PFX Exec prefix where libxml is installed (optional)], 18 xml_config_exec_prefix="$withval", xml_config_exec_prefix="") 19 AC_ARG_ENABLE(xmltest, 20 [ --disable-xmltest Do not try to compile and run a test LIBXML program],, 21 enable_xmltest=yes) 22 23 if test x$xml_config_exec_prefix != x ; then 24 xml_config_args="$xml_config_args" 25 if test x${XML2_CONFIG+set} != xset ; then 26 XML2_CONFIG=$xml_config_exec_prefix/bin/xml2-config 27 fi 28 fi 29 if test x$xml_config_prefix != x ; then 30 xml_config_args="$xml_config_args --prefix=$xml_config_prefix" 31 if test x${XML2_CONFIG+set} != xset ; then 32 XML2_CONFIG=$xml_config_prefix/bin/xml2-config 33 fi 34 fi 35 36 AC_PATH_PROG(XML2_CONFIG, xml2-config, no) 37 min_xml_version=ifelse([$1], ,2.0.0,[$1]) 38 AC_MSG_CHECKING(for libxml - version >= $min_xml_version) 39 no_xml="" 40 if test "$XML2_CONFIG" = "no" ; then 41 no_xml=yes 42 else 43 XML_CPPFLAGS=`$XML2_CONFIG $xml_config_args --cflags` 44 XML_LIBS=`$XML2_CONFIG $xml_config_args --libs` 45 xml_config_major_version=`$XML2_CONFIG $xml_config_args --version | \ 46 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` 47 xml_config_minor_version=`$XML2_CONFIG $xml_config_args --version | \ 48 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` 49 xml_config_micro_version=`$XML2_CONFIG $xml_config_args --version | \ 50 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` 51 if test "x$enable_xmltest" = "xyes" ; then 52 ac_save_CPPFLAGS="$CPPFLAGS" 53 ac_save_LIBS="$LIBS" 54 CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS" 55 LIBS="$XML_LIBS $LIBS" 56 dnl 57 dnl Now check if the installed libxml is sufficiently new. 58 dnl (Also sanity checks the results of xml2-config to some extent) 59 dnl 60 rm -f conf.xmltest 61 AC_TRY_RUN([ 62 #include <stdlib.h> 63 #include <stdio.h> 64 #include <string.h> 65 #include <libxml/xmlversion.h> 66 67 int 68 main() 69 { 70 int xml_major_version, xml_minor_version, xml_micro_version; 71 int major, minor, micro; 72 char *tmp_version; 73 74 system("touch conf.xmltest"); 75 76 /* Capture xml2-config output via autoconf/configure variables */ 77 /* HP/UX 9 (%@#!) writes to sscanf strings */ 78 tmp_version = (char *)strdup("$min_xml_version"); 79 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { 80 printf("%s, bad version string from xml2-config\n", "$min_xml_version"); 81 exit(1); 82 } 83 free(tmp_version); 84 85 /* Capture the version information from the header files */ 86 tmp_version = (char *)strdup(LIBXML_DOTTED_VERSION); 87 if (sscanf(tmp_version, "%d.%d.%d", &xml_major_version, &xml_minor_version, &xml_micro_version) != 3) { 88 printf("%s, bad version string from libxml includes\n", "LIBXML_DOTTED_VERSION"); 89 exit(1); 90 } 91 free(tmp_version); 92 93 /* Compare xml2-config output to the libxml headers */ 94 if ((xml_major_version != $xml_config_major_version) || 95 (xml_minor_version != $xml_config_minor_version) || 96 (xml_micro_version != $xml_config_micro_version)) 97 { 98 printf("*** libxml header files (version %d.%d.%d) do not match\n", 99 xml_major_version, xml_minor_version, xml_micro_version); 100 printf("*** xml2-config (version %d.%d.%d)\n", 101 $xml_config_major_version, $xml_config_minor_version, $xml_config_micro_version); 102 return 1; 103 } 104 /* Compare the headers to the library to make sure we match */ 105 /* Less than ideal -- doesn't provide us with return value feedback, 106 * only exits if there's a serious mismatch between header and library. 107 */ 108 LIBXML_TEST_VERSION; 109 110 /* Test that the library is greater than our minimum version */ 111 if ((xml_major_version > major) || 112 ((xml_major_version == major) && (xml_minor_version > minor)) || 113 ((xml_major_version == major) && (xml_minor_version == minor) && 114 (xml_micro_version >= micro))) 115 { 116 return 0; 117 } 118 else 119 { 120 printf("\n*** An old version of libxml (%d.%d.%d) was found.\n", 121 xml_major_version, xml_minor_version, xml_micro_version); 122 printf("*** You need a version of libxml newer than %d.%d.%d. The latest version of\n", 123 major, minor, micro); 124 printf("*** libxml is always available from ftp://ftp.xmlsoft.org.\n"); 125 printf("***\n"); 126 printf("*** If you have already installed a sufficiently new version, this error\n"); 127 printf("*** probably means that the wrong copy of the xml2-config shell script is\n"); 128 printf("*** being found. The easiest way to fix this is to remove the old version\n"); 129 printf("*** of LIBXML, but you can also set the XML2_CONFIG environment to point to the\n"); 130 printf("*** correct copy of xml2-config. (In this case, you will have to\n"); 131 printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n"); 132 printf("*** so that the correct libraries are found at run-time))\n"); 133 } 134 return 1; 135 } 136 ],, no_xml=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 137 CPPFLAGS="$ac_save_CPPFLAGS" 138 LIBS="$ac_save_LIBS" 139 fi 140 fi 141 142 if test "x$no_xml" = x ; then 143 AC_MSG_RESULT(yes (version $xml_config_major_version.$xml_config_minor_version.$xml_config_micro_version)) 144 ifelse([$2], , :, [$2]) 145 else 146 AC_MSG_RESULT(no) 147 if test "$XML2_CONFIG" = "no" ; then 148 echo "*** The xml2-config script installed by LIBXML could not be found" 149 echo "*** If libxml was installed in PREFIX, make sure PREFIX/bin is in" 150 echo "*** your path, or set the XML2_CONFIG environment variable to the" 151 echo "*** full path to xml2-config." 152 else 153 if test -f conf.xmltest ; then 154 : 155 else 156 echo "*** Could not run libxml test program, checking why..." 157 CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS" 158 LIBS="$LIBS $XML_LIBS" 159 AC_TRY_LINK([ 160 #include <libxml/xmlversion.h> 161 #include <stdio.h> 162 ], [ LIBXML_TEST_VERSION; return 0;], 163 [ echo "*** The test program compiled, but did not run. This usually means" 164 echo "*** that the run-time linker is not finding LIBXML or finding the wrong" 165 echo "*** version of LIBXML. If it is not finding LIBXML, you'll need to set your" 166 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 167 echo "*** to the installed location Also, make sure you have run ldconfig if that" 168 echo "*** is required on your system" 169 echo "***" 170 echo "*** If you have an old version installed, it is best to remove it, although" 171 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ], 172 [ echo "*** The test program failed to compile or link. See the file config.log for the" 173 echo "*** exact error that occurred. This usually means LIBXML was incorrectly installed" 174 echo "*** or that you have moved LIBXML since it was installed. In the latter case, you" 175 echo "*** may want to edit the xml2-config script: $XML2_CONFIG" ]) 176 CPPFLAGS="$ac_save_CPPFLAGS" 177 LIBS="$ac_save_LIBS" 178 fi 179 fi 180 181 XML_CPPFLAGS="" 182 XML_LIBS="" 183 ifelse([$3], , :, [$3]) 184 fi 185 AC_SUBST(XML_CPPFLAGS) 186 AC_SUBST(XML_LIBS) 187 rm -f conf.xmltest 188 ])