Bug #400 (partial): Driver fixes for the dlloader. When using dlloader, all

framebuffer formats except cfb and the overlay modes should work, and
    r128 and radeon need to be loaded from the ati driver (both issues to
    be fixed soon). Tested on i740, s3virge, mach64, tdfx, vesa, and vga
    drivers. elfloader users shouldn't be affected.

fb/fboverlay.c

@@ -23,7 +23,7 @@
  * Author:  Keith Packard, SuSE, Inc.
  */
 
-/* $XdotOrg: $ */
+/* $XdotOrg: xc/programs/Xserver/fb/fboverlay.c,v 1.3 2004/05/16 05:08:39 alanc Exp $ */
 
 #include "fb.h"
 #include "fboverlay.h"
@@ -31,6 +31,11 @@
 int	fbOverlayGeneration;
 int	fbOverlayScreenPrivateIndex = -1;
 
+int fbOverlayGetScreenPrivateIndex(void)
+{
+    return fbOverlayScreenPrivateIndex;
+}
+
 /*
  * Replace this if you want something supporting
  * multiple overlays with the same depth