--- libclamav/mbox.c.orig	Wed Apr  9 17:29:28 2008
+++ libclamav/mbox.c	Mon Apr 14 18:41:12 2008
@@ -32,11 +32,6 @@ static	char	const	rcsid[] = "$Id: mbox.c,v 1.381 2007/
 #define	NDEBUG	/* map CLAMAV debug onto standard */
 #endif
 
-#ifdef CL_THREAD_SAFE
-#ifndef	_REENTRANT
-#define	_REENTRANT	/* for Solaris 2.8 */
-#endif
-#endif
 
 #define _GNU_SOURCE
 
