$OpenBSD: patch-vhook_ppm_c,v 1.3 2005/04/20 16:46:54 naddy Exp $
--- vhook/ppm.c.orig	Thu Feb 24 14:07:10 2005
+++ vhook/ppm.c	Tue Apr 12 23:06:00 2005
@@ -75,7 +75,7 @@ rwpipe *rwpipe_open( int argc, char *arg
             close( output[ 0 ] );
             close( output[ 1 ] );
 
-            execl("/bin/sh", "sh", "-c", command, NULL );
+            execl("/bin/sh", "sh", "-c", command, (void *)NULL );
             exit( 255 );
         }
         else
