dnl
dnl Check for availability of the libxml library
dnl the XML parser uses libz if available too
dnl

AC_DEFUN([GNOME_XML_HOOK],[
	dnl Checks for zlib library.
	Z_LIBS=
	AC_CHECK_LIB(z, inflate,
	  AC_CHECK_HEADER(zlib.h, Z_LIBS="-lz"))

	AC_REQUIRE([GNOME_INIT_HOOK])
	GNOME_XML_LIB=""
	AC_CHECK_LIB(xml, xmlNewDoc, GNOME_XML_LIB="-lxml",
	             GNOME_XML_LIB="itwwci", -L$gnome_prefix $Z_LIBS)
	AC_SUBST(GNOME_XML_LIB)
	AC_PROVIDE([GNOME_XML_HOOK])

	if test "$GNOME_XML_LIB" = "itwwci"; then
		if test x$2 = xfailure; then
			AC_MSG_ERROR(Could not find xml)
		fi
	fi
])

AC_DEFUN([GNOME_XML_CHECK], [
	GNOME_XML_HOOK([],failure)
])