$NetBSD: patch-kdesud,v 1.1 2007/03/08 14:38:31 rillig Exp $

g++ 4.1.2 says:
kdesud.cpp:210: error: cast from 'char*' to 'socklen_t' loses precision

--- kdesu/kdesud/kdesud.cpp.orig	2005-09-10 10:26:13.000000000 +0200
+++ kdesu/kdesud/kdesud.cpp	2007-03-08 15:18:25.000000000 +0100
@@ -77,8 +77,8 @@
 #include <X11/Xlib.h>
 
 #ifndef SUN_LEN
-#define SUN_LEN(ptr) ((kde_socklen_t) (((struct sockaddr_un *) 0)->sun_path) \
-                     + strlen ((ptr)->sun_path))   
+#define SUN_LEN(ptr) ((kde_socklen_t) \
+    (offsetof(struct sockaddr_un, sun_path) + strlen ((ptr)->sun_path)))
 #endif
 
 #define ERR strerror(errno)