Index: config.h
===================================================================
--- config.h	(revision 177)
+++ config.h	(revision 178)
@@ -31,12 +31,15 @@
 // (link to OpenAL is always required !)
 //#define NO_SOUND_DEBUG
 
-// will highlight triangle with tag != 0 at render time :
-//#define RENDER_DEBUG_TAG
+// Allow Xinerama Support for X11
+#define HAVE_XINERAMA
 
 // enable key traces
 //#define DEBUG_KEYS
 
+// will highlight triangle with tag != 0 at render time :
+//#define RENDER_DEBUG_TAG
+
 // disable clipping
 //#define RENDER_DEBUG_NO_CLIP