1# Configure paths for LIBXML2 2# Simon Josefsson 2020-02-12 3# Fix autoconf 2.70+ warnings 4# Mike Hommey 2004-06-19 5# use CPPFLAGS instead of CFLAGS 6# Toshio Kuratomi 2001-04-21 7# Adapted from: 8# Configure paths for GLIB 9# Owen Taylor 97-11-3 10 11dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) 12dnl Test for XML, and define XML_CPPFLAGS and XML_LIBS 13dnl 14AC_DEFUN([AM_PATH_XML2],[ 15AC_ARG_WITH(xml-prefix, 16 [ --with-xml-prefix=PFX Prefix where libxml is installed (optional)], 17 xml_config_prefix="$withval", xml_config_prefix="") 18AC_ARG_WITH(xml-exec-prefix, 19 [ --with-xml-exec-prefix=PFX Exec prefix where libxml is installed (optional)], 20 xml_config_exec_prefix="$withval", xml_config_exec_prefix="") 21AC_ARG_ENABLE(xmltest, 22 [ --disable-xmltest Do not try to compile and run a test LIBXML program],, 23 enable_xmltest=yes) 24 25 if test x$xml_config_exec_prefix != x ; then 26 xml_config_args="$xml_config_args" 27 if test x${XML2_CONFIG+set} != xset ; then 28 XML2_CONFIG=$xml_config_exec_prefix/bin/xml2-config 29 fi 30 fi 31 if test x$xml_config_prefix != x ; then 32 xml_config_args="$xml_config_args --prefix=$xml_config_prefix" 33 if test x${XML2_CONFIG+set} != xset ; then 34 XML2_CONFIG=$xml_config_prefix/bin/xml2-config 35 fi 36 fi 37 38 AC_PATH_PROG(XML2_CONFIG, xml2-config, no) 39 min_xml_version=ifelse([$1], ,2.0.0,[$1]) 40 AC_MSG_CHECKING(for libxml - version >= $min_xml_version) 41 no_xml="" 42 if test "$XML2_CONFIG" = "no" ; then 43 no_xml=yes 44 else 45 XML_CPPFLAGS=`$XML2_CONFIG $xml_config_args --cflags` 46 XML_LIBS=`$XML2_CONFIG $xml_config_args --libs` 47 xml_config_major_version=`$XML2_CONFIG $xml_config_args --version | \ 48 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` 49 xml_config_minor_version=`$XML2_CONFIG $xml_config_args --version | \ 50 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` 51 xml_config_micro_version=`$XML2_CONFIG $xml_config_args --version | \ 52 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` 53 if test "x$enable_xmltest" = "xyes" ; then 54 ac_save_CPPFLAGS="$CPPFLAGS" 55 ac_save_LIBS="$LIBS" 56 CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS" 57 LIBS="$XML_LIBS $LIBS" 58dnl 59dnl Now check if the installed libxml is sufficiently new. 60dnl (Also sanity checks the results of xml2-config to some extent) 61dnl 62 rm -f conf.xmltest 63 AC_RUN_IFELSE( 64 [AC_LANG_SOURCE([[ 65#include <stdlib.h> 66#include <stdio.h> 67#include <string.h> 68#include <libxml/xmlversion.h> 69 70int 71main() 72{ 73 int xml_major_version, xml_minor_version, xml_micro_version; 74 int major, minor, micro; 75 char *tmp_version; 76 77 system("touch conf.xmltest"); 78 79 /* Capture xml2-config output via autoconf/configure variables */ 80 /* HP/UX 9 (%@#!) writes to sscanf strings */ 81 tmp_version = (char *)strdup("$min_xml_version"); 82 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { 83 printf("%s, bad version string from xml2-config\n", "$min_xml_version"); 84 exit(1); 85 } 86 free(tmp_version); 87 88 /* Capture the version information from the header files */ 89 tmp_version = (char *)strdup(LIBXML_DOTTED_VERSION); 90 if (sscanf(tmp_version, "%d.%d.%d", &xml_major_version, &xml_minor_version, &xml_micro_version) != 3) { 91 printf("%s, bad version string from libxml includes\n", "LIBXML_DOTTED_VERSION"); 92 exit(1); 93 } 94 free(tmp_version); 95 96 /* Compare xml2-config output to the libxml headers */ 97 if ((xml_major_version != $xml_config_major_version) || 98 (xml_minor_version != $xml_config_minor_version) || 99 (xml_micro_version != $xml_config_micro_version)) 100 { 101 printf("*** libxml header files (version %d.%d.%d) do not match\n", 102 xml_major_version, xml_minor_version, xml_micro_version); 103 printf("*** xml2-config (version %d.%d.%d)\n", 104 $xml_config_major_version, $xml_config_minor_version, $xml_config_micro_version); 105 return 1; 106 } 107/* Compare the headers to the library to make sure we match */ 108 /* Less than ideal -- doesn't provide us with return value feedback, 109 * only exits if there's a serious mismatch between header and library. 110 */ 111 LIBXML_TEST_VERSION; 112 113 /* Test that the library is greater than our minimum version */ 114 if ((xml_major_version > major) || 115 ((xml_major_version == major) && (xml_minor_version > minor)) || 116 ((xml_major_version == major) && (xml_minor_version == minor) && 117 (xml_micro_version >= micro))) 118 { 119 return 0; 120 } 121 else 122 { 123 printf("\n*** An old version of libxml (%d.%d.%d) was found.\n", 124 xml_major_version, xml_minor_version, xml_micro_version); 125 printf("*** You need a version of libxml newer than %d.%d.%d.\n", 126 major, minor, micro); 127 printf("***\n"); 128 printf("*** If you have already installed a sufficiently new version, this error\n"); 129 printf("*** probably means that the wrong copy of the xml2-config shell script is\n"); 130 printf("*** being found. The easiest way to fix this is to remove the old version\n"); 131 printf("*** of LIBXML, but you can also set the XML2_CONFIG environment to point to the\n"); 132 printf("*** correct copy of xml2-config. (In this case, you will have to\n"); 133 printf("*** modify your LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf\n"); 134 printf("*** so that the correct libraries are found at run-time))\n"); 135 } 136 return 1; 137} 138]])],, no_xml=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 139 CPPFLAGS="$ac_save_CPPFLAGS" 140 LIBS="$ac_save_LIBS" 141 fi 142 fi 143 144 if test "x$no_xml" = x ; then 145 AC_MSG_RESULT(yes (version $xml_config_major_version.$xml_config_minor_version.$xml_config_micro_version)) 146 ifelse([$2], , :, [$2]) 147 else 148 AC_MSG_RESULT(no) 149 if test "$XML2_CONFIG" = "no" ; then 150 echo "*** The xml2-config script installed by LIBXML could not be found" 151 echo "*** If libxml was installed in PREFIX, make sure PREFIX/bin is in" 152 echo "*** your path, or set the XML2_CONFIG environment variable to the" 153 echo "*** full path to xml2-config." 154 else 155 if test -f conf.xmltest ; then 156 : 157 else 158 echo "*** Could not run libxml test program, checking why..." 159 CPPFLAGS="$CPPFLAGS $XML_CPPFLAGS" 160 LIBS="$LIBS $XML_LIBS" 161 AC_LINK_IFELSE( 162 [AC_LANG_PROGRAM([[ 163#include <libxml/xmlversion.h> 164#include <stdio.h> 165]], [[ LIBXML_TEST_VERSION; return 0;]])], 166 [ echo "*** The test program compiled, but did not run. This usually means" 167 echo "*** that the run-time linker is not finding LIBXML or finding the wrong" 168 echo "*** version of LIBXML. If it is not finding LIBXML, you'll need to set your" 169 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 170 echo "*** to the installed location Also, make sure you have run ldconfig if that" 171 echo "*** is required on your system" 172 echo "***" 173 echo "*** If you have an old version installed, it is best to remove it, although" 174 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ], 175 [ echo "*** The test program failed to compile or link. See the file config.log for the" 176 echo "*** exact error that occurred. This usually means LIBXML was incorrectly installed" 177 echo "*** or that you have moved LIBXML since it was installed. In the latter case, you" 178 echo "*** may want to edit the xml2-config script: $XML2_CONFIG" ]) 179 CPPFLAGS="$ac_save_CPPFLAGS" 180 LIBS="$ac_save_LIBS" 181 fi 182 fi 183 184 XML_CPPFLAGS="" 185 XML_LIBS="" 186 ifelse([$3], , :, [$3]) 187 fi 188 AC_SUBST(XML_CPPFLAGS) 189 AC_SUBST(XML_LIBS) 190 rm -f conf.xmltest 191]) 192