--- dispextern.h	26 Feb 2005 02:26:33 +0100	1.197
+++ dispextern.h	01 Mar 2005 18:10:32 +0100	
@@ -128,7 +128,7 @@
 #endif
 
 /* Maybe move this inside the above `#ifdef GLYPH_DEBUG' for release.  */
-#define xassert(X)	do {if (!(X)) abort ();} while (0)
+#define xassert(X)	IF_DEBUG(do {if (!(X)) abort ();} while (0))
 
 /* Macro for displaying traces of redisplay.  If Emacs was compiled
    with GLYPH_DEBUG != 0, the variable trace_redisplay_p can be set to