$NetBSD: patch-aj,v 1.1 2008/07/30 20:18:37 drochner Exp $

--- hacks/glx/skytentacles.c.orig	2008-07-16 22:19:15.000000000 +0200
+++ hacks/glx/skytentacles.c
@@ -241,6 +241,9 @@ make_tentacle (ModeInfo *mi, int which, 
 
   if (tc->tentacles_size <= tc->ntentacles)
     {
+      if (!tc->tentacles_size)
+	tc->tentacles_size = 10;
+      else
       tc->tentacles_size = (tc->tentacles_size * 1.2) + tc->ntentacles;
       tc->tentacles = (tentacle **)
         realloc (tc->tentacles, tc->tentacles_size * sizeof(*tc->tentacles));
