Improved xorg-server/modular-x-conf.in to help Xorg packages to cross compile

xorg/xorg-server/modular-x-conf.in

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../xorg-server/modular-x-conf.in
-# Copyright (C) 2007 The OpenSDE Project
+# Copyright (C) 2007 - 2008 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -32,3 +32,15 @@ for ad in usr/X11/lib/X11/app-defaults usr/X11/lib64/X11/app-defaults \
 	var_append INSTALL_WRAPPER_FILTER "|" "sed -e 's,$ad,etc/X11/app-defaults,'"
 done
 
+# while cross compiling some Xorg packages need help
+#
+if atstage cross; then
+	if pkginstalled -f xproto; then
+		# help them to find xproto files
+		export XPROTO_CFLAGS="-I$root$( pkgprefix includedir xproto )"
+	fi
+
+	# tests that can't be performed while cross compiling
+	# it's better to disable than assuming the wrong (config.cache)
+	var_append extraconfopt ' ' '--disable-malloc0returnsnull'
+fi