File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / libxml2 / libxml.m4
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Feb 21 23:37:57 2012 UTC (12 years, 3 months ago) by misho
Branches: libxml2, MAIN
CVS tags: v2_9_1p0, v2_9_1, v2_8_0p0, v2_8_0, v2_7_8, HEAD
libxml2

    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, &micro) != 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 occured. 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: ])

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