From bea59f64b2bc1e29840adfbb07583dc0b763db83 Mon Sep 17 00:00:00 2001
From: Camilla Berglund <elmindreda@elmindreda.org>
Date: Tue, 23 Jul 2013 00:20:23 +0200
Subject: [PATCH] Enabled inclusion of stddef.h on all platforms.

The OS X gl.h defines section macros that prevents glext.h from
including stddef.h, leaving it undeclared when it's later used.
---
 include/GLFW/glfw3.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/GLFW/glfw3.h b/include/GLFW/glfw3.h
index 2738fa18..cdf52492 100644
--- a/include/GLFW/glfw3.h
+++ b/include/GLFW/glfw3.h
@@ -132,10 +132,9 @@ extern "C" {
  #define GLFW_CALLBACK_DEFINED
 #endif /* CALLBACK */
 
-/* Most <GL/glu.h> variants on Windows need wchar_t */
-#if defined(_WIN32)
- #include <stddef.h>
-#endif
+/* Most GL/glu.h variants on Windows need wchar_t
+ * OpenGL/gl.h blocks the definition of ptrdiff_t by glext.h on OS X */
+#include <stddef.h>
 
 
 /* ---------------- GLFW related system specific defines ----------------- */