From a1a8fd99a08c3f6631bf9f8a287c1207576862ce Mon Sep 17 00:00:00 2001
From: sater <none@none>
Date: Thu, 10 Jan 1985 16:30:09 +0000
Subject: [PATCH] Optional register property in stacking rules must be -1 when
 absent. Fixed this.

---
 util/ncgg/cgg.y | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/ncgg/cgg.y b/util/ncgg/cgg.y
index 37ece481c..34af468ed 100644
--- a/util/ncgg/cgg.y
+++ b/util/ncgg/cgg.y
@@ -525,7 +525,7 @@ stackdeflist_el
 	;
 optuses
 	: /* empty */
-		{ $$ = 0; nallreg=0;}
+		{ $$ = -1; nallreg=0;}
 	| USES propno
 		{ $$ = $2; nallreg = 1; allreg[0] = $2; }
 	;