--- libclamav/mbox.c.orig	Thu Dec 13 00:25:59 2007
+++ libclamav/mbox.c	Tue Dec 18 10:18:09 2007
@@ -30,11 +30,6 @@ 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
 
