$OpenBSD: patch-command_c,v 1.3 2010/11/08 21:25:44 edd Exp $
--- command.c.orig	Sun Oct 24 11:11:25 2010
+++ command.c	Sun Oct 24 11:11:43 2010
@@ -3379,7 +3379,7 @@ int run_command(MPContext *mpctx, mp_cmd_t *cmd)
         case MP_CMD_RUN:
 #ifndef __MINGW32__
             if (!fork()) {
-                execl("/bin/sh", "sh", "-c", cmd->args[0].v.s, NULL);
+                execl("/bin/sh", "sh", "-c", cmd->args[0].v.s, (char *) NULL);
                 exit(0);
             }
 #endif