From db46d18e71522eb63331ef8a7ba67ffe8bd93dc6 Mon Sep 17 00:00:00 2001
From: Dennis Felsing <dennis@felsin9.de>
Date: Fri, 20 Oct 2017 09:08:49 +0200
Subject: [PATCH] No GLEW on OSX necessary (untested)

---
 other/glew.lua                        | 2 +-
 src/engine/client/backend_sdl.cpp     | 9 ++++++++-
 src/engine/client/opengl_sl.h         | 6 +++++-
 src/engine/client/opengl_sl_program.h | 6 +++++-
 4 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/other/glew.lua b/other/glew.lua
index 009fbbde4..fc690e9cf 100644
--- a/other/glew.lua
+++ b/other/glew.lua
@@ -36,7 +36,7 @@ Glew = {
 				
 				settings.link.libs:Add("glew32")
 			elseif option.use_macosxframwork > 0 then
-				--todo
+				-- no glew
 			else
 				settings.link.libs:Add("GLEW")
 			end
diff --git a/src/engine/client/backend_sdl.cpp b/src/engine/client/backend_sdl.cpp
index 36ad6b17e..4eb52be89 100644
--- a/src/engine/client/backend_sdl.cpp
+++ b/src/engine/client/backend_sdl.cpp
@@ -6,7 +6,12 @@
 	#define WINVER 0x0501
 #endif
 
+#if defined(CONF_PLATFORM_MACOSX)
+#include <OpenGL/gl3.h>
+#else
 #include "GL/glew.h"
+#endif
+
 #include <base/detect.h>
 #include <base/math.h>
 #include <stdlib.h>
@@ -1675,11 +1680,13 @@ int CGraphicsBackend_SDL_OpenGL::Init(const char *pName, int *Screen, int *pWidt
 		dbg_msg("gfx", "unable to create OpenGL context: %s", SDL_GetError());
 		return -1;
 	}
-	
+
+#if defined(CONF_PLATFORM_MACOSX)
 	//support graphic cards that are pretty old(and linux)
 	glewExperimental = GL_TRUE;
 	if (GLEW_OK != glewInit())
 		return -1;
+#endif
 
 	SDL_GL_GetDrawableSize(m_pWindow, pWidth, pHeight);
 	SDL_GL_SetSwapInterval(Flags&IGraphicsBackend::INITFLAG_VSYNC ? 1 : 0);
diff --git a/src/engine/client/opengl_sl.h b/src/engine/client/opengl_sl.h
index aec85c05a..8adf1619f 100644
--- a/src/engine/client/opengl_sl.h
+++ b/src/engine/client/opengl_sl.h
@@ -1,6 +1,10 @@
 #pragma once
 
+#if defined(CONF_PLATFORM_MACOSX)
+#include <OpenGL/gl3.h>
+#else
 #include "GL/glew.h"
+#endif
 
 class CGLSL {
 public:
@@ -16,4 +20,4 @@ private:
 	GLuint m_ShaderID;
 	int m_Type;
 	bool m_IsLoaded;
-};
\ No newline at end of file
+};
diff --git a/src/engine/client/opengl_sl_program.h b/src/engine/client/opengl_sl_program.h
index 810243dbb..2af42d4c3 100644
--- a/src/engine/client/opengl_sl_program.h
+++ b/src/engine/client/opengl_sl_program.h
@@ -1,6 +1,10 @@
 #pragma once
 
+#if defined(CONF_PLATFORM_MACOSX)
+#include <OpenGL/gl3.h>
+#else
 #include "GL/glew.h"
+#endif
 
 class CGLSL;
 
@@ -73,4 +77,4 @@ class CGLSLBorderTileLineProgram : public CGLSLTileProgram {
 public:
 	int m_LocDir;
 	int m_LocNum;
-};
\ No newline at end of file
+};