build libxml2 loader

configure.ac

@@ -7,6 +7,10 @@ AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)
 AM_CONFIG_HEADER(config.h)
 AM_MAINTAINER_MODE
 
+dnl Disable libtool 1.5 support for languages we don't use
+define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
+define([AC_LIBTOOL_LANG_GCJ_CONFIG], [:])dnl
+
 AC_ISC_POSIX
 AC_PROG_CXX
 AM_PROG_CC_STDC
@@ -116,6 +120,7 @@ AM_CONDITIONAL(HAVE_LIBXML2, test "x$enable_libxml2" = "xyes")
 if [ test "x$enable_libxml2" = "xyes"]; then
   AC_MSG_RESULT(yes)
   PKG_CHECK_MODULES(LIBXML2, libxml-2.0)
+  AC_DEFINE(HAVE_LIBXML2, 1,"")
 else
   AC_MSG_RESULT(no)
 fi

include/mapnik/load_map.hpp

@@ -24,6 +24,10 @@
 #ifndef MAP_LOADER_HPP
 #define MAP_LOADER_HPP
 
+#ifdef HAVE_CONFIG_H
+  #include <config.h>
+#endif
+
 #include <string>
 #include <mapnik/map.hpp>