From ed1db42915dc13cff9b940ae2b12ff9e38b28961 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Wed, 14 Sep 2005 11:41:59 +0000
Subject: [PATCH] * List concatenation must be right-associative for
 efficiency.

---
 src/libexpr/parser.y | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index 23f1965ecd..fe87734f20 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -64,7 +64,7 @@ static Pos makeCurPos(YYLTYPE * loc, void * data)
 %right UPDATE
 %left NEG
 %left '+'
-%left CONCAT
+%right CONCAT
 %nonassoc '?'
 %nonassoc '~'