$OpenBSD: patch-src_popen_c,v 1.4 2009/04/25 22:07:37 okan Exp $
--- src/popen.c.orig	Mon Sep  8 11:43:41 2008
+++ src/popen.c	Sat Apr 11 16:32:57 2009
@@ -452,7 +452,7 @@ if (pid == 0)
          }
       }
    
-   execl("/bin/sh","sh","-c",command,NULL);
+   execl("/bin/sh","sh","-c",command,(void *)NULL);
    _exit(1);
    }
 else
@@ -596,7 +596,7 @@ if (pid == 0)
       _exit(1);
       }
    
-   execl("/bin/sh","sh","-c",command,NULL);
+   execl("/bin/sh","sh","-c",command,(void *)NULL);
    _exit(1);
    }
 else