$OpenBSD: patch-unix_c,v 1.2 2007/12/20 15:47:18 ajacoutot Exp $
--- unix.c.orig	Thu Feb 13 16:05:44 2003
+++ unix.c	Thu Dec 20 16:46:01 2007
@@ -128,9 +128,9 @@ execsh(char *args, char *cmd, Bufblock *buf, Envy *e)
 			if (e)
 				exportenv(e);
 			if(shflags)
-				execl(shell, shellname, shflags, args, 0);
+				execl(shell, shellname, shflags, args, (void *)NULL);
 			else
-				execl(shell, shellname, args, 0);
+				execl(shell, shellname, args, (void *)NULL);
 			mkperror(shell);
 			_exit(1);
 		}
@@ -193,9 +193,9 @@ pipecmd(char *cmd, Envy *e, int *fd)
 		if(e)
 			exportenv(e);
 		if(shflags)
-			execl(shell, shellname, shflags, "-c", cmd, 0);
+			execl(shell, shellname, shflags, "-c", cmd, (void *)NULL);
 		else
-			execl(shell, shellname, "-c", cmd, 0);
+			execl(shell, shellname, "-c", cmd, (void *)NULL);
 		mkperror(shell);
 		_exit(1);
 	}