commit dc6f9f033a351714da8d1a7421eeb0d4848e5925
from: rsc <devnull@localhost>
date: Thu Oct 12 03:18:22 2006 UTC

avoid broken print (Gabriel Diaz)

commit - 2b03bf696ca055900ba587d010e731964f56ee3a
commit + dc6f9f033a351714da8d1a7421eeb0d4848e5925
blob - 439d611483ef1c1f220d0ddd32b0edfa21edfdba
blob + 30728197e7eea5b6506cf32a1441399f5d261588
--- src/cmd/mk/rule.c
+++ src/cmd/mk/rule.c
@@ -74,6 +74,8 @@ addrule(char *head, Word *tail, char *body, Word *ahea
 void
 dumpr(char *s, Rule *r)
 {
+	if(r == nil)
+		return;
 	Bprint(&bout, "%s: start=%ld shelltype=%s shellcmd=%s\n", 
 		s, r, r->shellt->name, wtos(r->shellcmd, ' '));
 	for(; r; r = r->next){