From 086029f6f536d53a0cd882d2cf8b550aaf98fced Mon Sep 17 00:00:00 2001
From: Michael Fogleman <fogleman@gmail.com>
Date: Wed, 8 Jan 2014 19:33:35 -0500
Subject: [PATCH] use -D_GNU_SOURCE on UNIX

---
 deps/glfw/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/deps/glfw/CMakeLists.txt b/deps/glfw/CMakeLists.txt
index b6032a49e..153857925 100644
--- a/deps/glfw/CMakeLists.txt
+++ b/deps/glfw/CMakeLists.txt
@@ -84,7 +84,7 @@ endif()
 # Set compiler specific flags
 #--------------------------------------------------------------------
 if (UNIX)
-    add_definitions(-Wall)
+    add_definitions(-Wall -D_GNU_SOURCE)
 
     if (BUILD_SHARED_LIBS)
         add_definitions(-fvisibility=hidden)