From 9b95c3c75ec01b427a20f7486a7bee5625291534 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Tue, 29 Jul 2014 15:43:59 +0900
Subject: [PATCH] exit status

---
 tools/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/main.c b/tools/main.c
index e241a277..428b2764 100644
--- a/tools/main.c
+++ b/tools/main.c
@@ -9,6 +9,7 @@ int
 main(int argc, char *argv[], char **envp)
 {
   pic_state *pic;
+  int status = 0;
 
   pic = pic_open(argc, argv, envp);
 
@@ -18,9 +19,10 @@ main(int argc, char *argv[], char **envp)
   }
   pic_catch {
     pic_print_backtrace(pic, pic->err);
+    status = 1;
   }
 
   pic_close(pic);
 
-  return 0;
+  return status;
 }