From bfd41bd6bf09becfc035c9b9805b29b9ebbf532c Mon Sep 17 00:00:00 2001
From: Yukihiro Matz Matsumoto <matz@ruby-lang.org>
Date: Sat, 22 Dec 2012 00:11:45 +0900
Subject: avoid printing backtrace line with unknown place info

---
 tools/mruby/mruby.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/mruby/mruby.c b/tools/mruby/mruby.c
index 99af7bc5d..9d6182238 100644
--- a/tools/mruby/mruby.c
+++ b/tools/mruby/mruby.c
@@ -202,6 +202,7 @@ showcallinfo(mrb_state *mrb)
         }
       }
     }
+    if (line == -1) continue;
     if (ci->target_class == ci->proc->target_class)
       sep = ".";
     else
-- 
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