$OpenBSD: patch-vhook_ppm_c,v 1.2 2005/02/09 23:41:43 naddy Exp $
--- vhook/ppm.c.orig	Wed Jan 12 20:48:23 2005
+++ vhook/ppm.c	Sun Jan 16 21:01:36 2005
@@ -74,7 +74,7 @@ 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