From cd48737e118bcc1ed58e9710b9641e5a9e457179 Mon Sep 17 00:00:00 2001
From: Yukihiro Matsumoto <matz@ruby-lang.org>
Date: Sat, 2 Jun 2012 00:07:05 +0900
Subject: mrb_str_concat was broken for shared strings; close #214

---
 src/string.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/string.c b/src/string.c
index b6ca9e489..044083848 100644
--- a/src/string.c
+++ b/src/string.c
@@ -337,6 +337,7 @@ mrb_str_concat(mrb_state *mrb, mrb_value self, mrb_value other)
   struct RString *s1 = mrb_str_ptr(self), *s2;
   int len;
 
+  str_modify(mrb, self);
   if (mrb_type(other) != MRB_TT_STRING) {
     other = mrb_str_to_str(mrb, other);
   }
-- 
cgit v1.2.3