From 54a08a44c189f6ea5a3810e260c56cddfaec8c63 Mon Sep 17 00:00:00 2001
From: cantabile <cantabile.desu@gmail.com>
Date: Tue, 15 May 2012 14:06:18 +0000
Subject: [PATCH] stdout log emitter: flush stdout after every printf() if
 stdout is not a terminal

This makes it possible to watch aegisub's output in realtime even if its
stdout is redirected to a file.

Originally committed to SVN as r6793.
---
 aegisub/libaegisub/unix/log.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/aegisub/libaegisub/unix/log.cpp b/aegisub/libaegisub/unix/log.cpp
index a892ba88a..4ddaef307 100644
--- a/aegisub/libaegisub/unix/log.cpp
+++ b/aegisub/libaegisub/unix/log.cpp
@@ -46,6 +46,8 @@ void EmitSTDOUT::log(SinkMessage *sm) {
 		sm->line,
 		(int)sm->len,
 		sm->message);
+	if (!isatty(fileno(stdout)))
+		fflush(stdout);
 }
 
 	} // namespace log