openbsd-ports/games/quake2/patches/patch-src_sv_world_c

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$OpenBSD: patch-src_sv_world_c,v 1.1 2010/06/07 16:03:40 espie Exp $
--- src/sv_world.c.orig Mon Jun 7 17:49:42 2010
+++ src/sv_world.c Mon Jun 7 17:56:40 2010
@@ -30,10 +30,12 @@ FIXME: this use of "area" is different from the bsp fi
===============================================================================
*/
+#include <stddef.h>
+
// (type *)STRUCT_FROM_LINK(link_t *link, type, member)
// ent = STRUCT_FROM_LINK(link,entity_t,order)
// FIXME: remove this mess!
-#define STRUCT_FROM_LINK(l,t,m) ((t *)((byte *)l - (int)&(((t *)0)->m)))
+#define STRUCT_FROM_LINK(l,t,m) ((t *)((byte *)l - offsetof(t, m)))
#define EDICT_FROM_AREA(l) STRUCT_FROM_LINK(l,edict_t,area)