# 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     97-11-3dnl AM_PATH_XML2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])dnl Test for XML, and define XML_CPPFLAGS and XML_LIBSdnlAC_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 $LIBS"dnldnl Now check if the installed libxml is sufficiently new.dnl (Also sanity checks the results of xml2-config to some extent)dnl      rm -f conf.xmltest      AC_TRY_RUN([#include <stdlib.h>#include <stdio.h>#include <string.h>#include <libxml/xmlversion.h>int main(){  int xml_major_version, xml_minor_version, xml_micro_version;  int major, minor, micro;  char *tmp_version;  system("touch conf.xmltest");  /* Capture xml2-config output via autoconf/configure variables */  /* HP/UX 9 (%@#!) writes to sscanf strings */  tmp_version = (char *)strdup("$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])