plan9port

commit dc6f9f033a351714da8d1a7421eeb0d4848e5925
parent 2b03bf696ca055900ba587d010e731964f56ee3a
Author: rsc <devnull@localhost>
Date:   Thu, 12 Oct 2006 03:18:22 +0000

avoid broken print (Gabriel Diaz)

Diffstat:
M
src/cmd/mk/rule.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/cmd/mk/rule.c b/src/cmd/mk/rule.c
@@ -74,6 +74,8 @@ addrule(char *head, Word *tail, char *body, Word *ahead, int attr, int hline, ch
 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){