From 133ff3421a9867ec49a23df97aba3db63fc78755 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 17 May 2000 04:38:19 +0000
Subject: 2000-05-17

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 2ffb174675..405aa7d2d2 100644
--- a/io.c
+++ b/io.c
@@ -1527,6 +1527,8 @@ pipe_open(pname, mode)
 		    ruby_sourcefile, ruby_sourceline, pname);
 	    _exit(127);
 	}
+	rb_io_synchronized(RFILE(orig_stdout)->fptr);
+	rb_io_synchronized(RFILE(orig_stderr)->fptr);
 	return Qnil;
 
       case -1:			/* fork failed */
-- 
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