medit/m4/moo-xml.m4

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##############################################################################
# MOO_AC_CHECK_XML_STUFF(action-if-found,action-if-not-found)
# checks whether libxml2 is available, checks some functions and structures
#
AC_DEFUN([MOO_AC_CHECK_XML_STUFF],[
PKG_CHECK_MODULES(XML,libxml-2.0,[
save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $XML_CFLAGS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $XML_CFLAGS"
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $XML_LIBS"
AC_CHECK_FUNCS(xmlReadFile xmlParseFile)
AC_MSG_CHECKING([for xmlNode.line])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <libxml/parser.h>
#include <libxml/tree.h>
int main ()
{
xmlNode *node;
int line;
line = node->line;
return 0;
}]])],[
AC_MSG_RESULT(present)
AC_DEFINE(HAVE_XMLNODE_LINE,1,[Define if xmlNode structure has 'line' member])
],[
AC_MSG_RESULT(not present)
])
LDFLAGS="$save_LDFLAGS"
CFLAGS="$save_CFLAGS"
CPPFLAGS="$save_CPPFLAGS"
MOO_XML_PKG_NAME=libxml-2.0
$1
],[
MOO_XML_PKG_NAME=
$2
])
AC_SUBST(MOO_XML_PKG_NAME)
])
##############################################################################
# MOO_AC_XML([])
#
AC_DEFUN([MOO_AC_XML],[
AC_REQUIRE([MOO_AC_CHECK_OS])
MOO_USE_XML="no"
AC_ARG_WITH([xml],
AC_HELP_STRING([--with-xml], [whether to use libxml2 (default: use if present)]),
[MOO_USE_XML=$withval],
[MOO_USE_XML=auto]
)
if test x$MOO_OS_CYGWIN != "xyes"; then
if test x$MOO_USE_XML != "xno"; then
MOO_AC_CHECK_XML_STUFF([moo_found_xml=yes],[moo_found_xml=no])
fi
if test x$MOO_USE_XML = "xyes" -a x$moo_found_xml = "xno"; then
AC_MSG_ERROR([libxml2 library not found])
fi
if test x$moo_found_xml = "xyes"; then
MOO_USE_XML=yes
AC_MSG_NOTICE([compiling with xml support])
AC_DEFINE(MOO_USE_XML, 1, [use libxml])
else
MOO_USE_XML=no
AC_MSG_NOTICE([compiling without xml support])
fi
fi
AM_CONDITIONAL(MOO_USE_XML, test x$MOO_USE_XML = xyes)
])