$OpenBSD: patch-system_c,v 1.3 2005/09/14 21:00:03 bernd Exp $
--- system.c.orig	Thu Feb  3 19:47:53 2005
+++ system.c	Fri Aug 12 09:21:37 2005
@@ -114,7 +114,7 @@ int _mutt_system (const char *cmd, int f
     sigaction (SIGTSTP, &act, NULL);
     sigaction (SIGCONT, &act, NULL);
 
-    execl (EXECSHELL, "sh", "-c", cmd, NULL);
+    execl (EXECSHELL, "sh", "-c", cmd, (void *)NULL);
     _exit (127); /* execl error */
   }
   else if (thepid != -1)
