From 0d1d48d60fa2a48cae4e0ab4933e04ef3bf6a96d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Fonseca?= <jfonseca@vmware.com>
Date: Thu, 27 Oct 2011 14:43:10 +0100
Subject: [PATCH] Define GLhandleARB as unsigned long on MacOSX.

---
 thirdparty/glext/Makefile  |  3 +++
 thirdparty/glext/glext.h   |  4 ++++
 thirdparty/glext/glext.sed | 19 +++++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 thirdparty/glext/glext.sed

diff --git a/thirdparty/glext/Makefile b/thirdparty/glext/Makefile
index 3223c3c..5a80007 100644
--- a/thirdparty/glext/Makefile
+++ b/thirdparty/glext/Makefile
@@ -3,6 +3,9 @@ update: glext.h glxext.h wglext.h
 %.h: FORCE
 	wget -N "http://www.opengl.org/registry/api/$@"
 
+glext.h: glext.sed FORCE
+	wget -O - "http://www.opengl.org/registry/api/$@" | sed -f $*.sed > $@
+
 .PHONY: update
 
 FORCE:
diff --git a/thirdparty/glext/glext.h b/thirdparty/glext/glext.h
index af58da2..c640bb8 100644
--- a/thirdparty/glext/glext.h
+++ b/thirdparty/glext/glext.h
@@ -5335,8 +5335,12 @@ typedef ptrdiff_t GLsizeiptrARB;
 #ifndef GL_ARB_shader_objects
 /* GL types for program/shader text and shader object handles */
 typedef char GLcharARB;
+#ifdef __APPLE__
+typedef unsigned long GLhandleARB;
+#else
 typedef unsigned int GLhandleARB;
 #endif
+#endif
 
 /* GL type for "half" precision (s10e5) float data in host memory */
 #ifndef GL_ARB_half_float_pixel
diff --git a/thirdparty/glext/glext.sed b/thirdparty/glext/glext.sed
new file mode 100644
index 0000000..bc4835d
--- /dev/null
+++ b/thirdparty/glext/glext.sed
@@ -0,0 +1,19 @@
+# MacOSX doesn't follow the official glext.h definition for GLhandleARB, and
+# instead defines it as:
+#
+#   typedef void *GLhandleARB;
+#
+# But to avoid integer to pointer conversion issues, we simply use 'unsigned
+# long' which should be the same size on all supported architectures.
+
+/^typedef unsigned int GLhandleARB;$/ {
+
+    i\
+#ifdef __APPLE__\
+typedef unsigned long GLhandleARB;\
+#else
+
+    a\
+#endif
+
+}
-- 
2.43.0