From 2c3766f06adf0ba226a592939971f8ef587e54c1 Mon Sep 17 00:00:00 2001
From: Anders Melchiorsen <mail@cup.kalibalik.dk>
Date: Mon, 4 Aug 2008 02:30:03 +0200
Subject: Flush output in start_async

This prevents double output in case stdout is redirected.

Signed-off-by: Anders Melchiorsen <mail@cup.kalibalik.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/run-command.c b/run-command.c
index a3b28a6..6af83c5 100644
--- a/run-command.c
+++ b/run-command.c
@@ -304,6 +304,9 @@ int start_async(struct async *async)
 	async->out = pipe_out[0];
 
 #ifndef __MINGW32__
+	/* Flush stdio before fork() to avoid cloning buffers */
+	fflush(NULL);
+
 	async->pid = fork();
 	if (async->pid < 0) {
 		error("fork (async) failed: %s", strerror(errno));
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 57173b4..a13b6f9 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -31,6 +31,12 @@ test_expect_success 'clone with excess parameters (2)' '
 
 '
 
+test_expect_success 'output from clone' '
+	rm -fr dst &&
+	git clone -n "file://$(pwd)/src" dst >output &&
+	test $(grep Initialized output | wc -l) = 1
+'
+
 test_expect_success 'clone does not keep pack' '
 
 	rm -fr dst &&
-- 
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