$NetBSD$

--- generate.c.orig	1995-06-07 01:05:30.000000000 -0500
+++ generate.c
@@ -54,7 +54,8 @@ static bool ev_mode = VALENCE_DRIVEN;
 
 static void evolve2(pattern *context)
 {
-    register u_long t1,t2,t3,*tmpptr,y, live_total = 0, changes = 0;
+    register u_long t1,t2,t3,y, live_total = 0, changes = 0;
+    register u32bits *tmpptr;
     tile *cptr,*tptr,*cptrup,*cptrdn,*cptrlf,*cptrrt;
 
     /*
