diff --git a/engines/grim/gfx_opengl.cpp b/engines/grim/gfx_opengl.cpp
index fe25120d756..28872f19724 100644
--- a/engines/grim/gfx_opengl.cpp
+++ b/engines/grim/gfx_opengl.cpp
@@ -52,7 +52,7 @@
 #include "engines/grim/registry.h"
 
 
-#if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program)
+#if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program) && !defined(USE_GLEW)
 
 // We need SDL.h for SDL_GL_GetProcAddress.
 #include "backends/platform/sdl/sdl-sys.h"
@@ -177,6 +177,7 @@ void GfxOpenGL::initExtensions() {
 	}
 
 #if defined (SDL_BACKEND) && defined(GL_ARB_fragment_program)
+#ifndef USE_GLEW
 	union {
 		void *obj_ptr;
 		void (APIENTRY *func_ptr)();
@@ -194,6 +195,7 @@ void GfxOpenGL::initExtensions() {
 	glDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)u.func_ptr;
 	u.obj_ptr = SDL_GL_GetProcAddress("glProgramLocalParameter4fARB");
 	glProgramLocalParameter4fARB = (PFNGLPROGRAMLOCALPARAMETER4FARBPROC)u.func_ptr;
+#endif
 
 	const char *extensions = (const char *)glGetString(GL_EXTENSIONS);
 	if (strstr(extensions, "ARB_fragment_program")) {
diff --git a/engines/grim/gfx_opengl.h b/engines/grim/gfx_opengl.h
index a3cb6d5f74e..fc5c54ae127 100644
--- a/engines/grim/gfx_opengl.h
+++ b/engines/grim/gfx_opengl.h
@@ -27,7 +27,9 @@
 
 #ifdef USE_OPENGL
 
-#if defined (SDL_BACKEND) && !defined(__amigaos4__)
+#ifdef USE_GLEW
+#include <GL/glew.h>
+#elif defined (SDL_BACKEND) && !defined(__amigaos4__)
 #include <SDL_opengl.h>
 #undef ARRAYSIZE
 #else
diff --git a/graphics/opengles2/framebuffer.cpp b/graphics/opengles2/framebuffer.cpp
index 568dbc29e75..0550e32402a 100644
--- a/graphics/opengles2/framebuffer.cpp
+++ b/graphics/opengles2/framebuffer.cpp
@@ -48,7 +48,7 @@
 
 namespace Graphics {
 
-#if defined(SDL_BACKEND) && !defined(USE_OPENGL_SHADERS)
+#if defined(SDL_BACKEND) && !defined(USE_GLEW)
 static bool framebuffer_object_functions = false;
 static PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebuffer;
 static PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbuffer;
@@ -122,10 +122,12 @@ static bool usePackedBuffer() {
 FrameBuffer::FrameBuffer(uint width, uint height) :
 		_managedTexture(true), _width(width), _height(height),
 		_texWidth(nextHigher2(width)), _texHeight(nextHigher2(height)) {
-#if defined(SDL_BACKEND) && !defined(USE_OPENGL_SHADERS)
+#ifdef SDL_BACKEND
 	if (!Graphics::isExtensionSupported("GL_EXT_framebuffer_object")) {
 		error("GL_EXT_framebuffer_object extension is not supported!");
 	}
+#endif
+#if defined(SDL_BACKEND) && !defined(USE_GLEW)
 	grabFramebufferObjectPointers();
 #endif
 	glGenTextures(1, &_colorTexture);