From d68275cefc69a746c8eae6977890723d9c15f9db Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 6 Sep 2014 18:02:05 +0200
Subject: [PATCH] one less annoying compiler warning.

---
 libs/gtkmm2ext/gtkmm2ext/gtk_ui.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h b/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
index 065cc4bc00..0a66accaef 100644
--- a/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
+++ b/libs/gtkmm2ext/gtkmm2ext/gtk_ui.h
@@ -42,7 +42,9 @@
 #include <gtkmm/main.h>
 #include <gdkmm/color.h>
 
+#ifndef ABSTRACT_UI_EXPORTS
 #define ABSTRACT_UI_EXPORTS
+#endif
 #include "pbd/abstract_ui.h"
 #include "pbd/ringbufferNPT.h"
 #include "pbd/pool.h"