diff --git a/lib/ivis_opengl/piedraw.c b/lib/ivis_opengl/piedraw.c
index cc215cec8..2f06d9fc7 100644
--- a/lib/ivis_opengl/piedraw.c
+++ b/lib/ivis_opengl/piedraw.c
@@ -76,7 +76,9 @@ BOOL stencil_one_pass() {
 	if (!initialised) {
 		return_value =    check_extension("GL_EXT_stencil_two_side")
 			       && check_extension("GL_EXT_stencil_wrap");
+#ifndef __APPLE__
 		glActiveStencilFaceEXT = (PFNGLACTIVESTENCILFACEEXTPROC) SDL_GL_GetProcAddress("glActiveStencilFaceEXT");
+#endif
 		initialised = TRUE;
 	}
 
diff --git a/lib/ivis_opengl/piematrix.c b/lib/ivis_opengl/piematrix.c
index 7ffdbfd1f..1ab43be18 100644
--- a/lib/ivis_opengl/piematrix.c
+++ b/lib/ivis_opengl/piematrix.c
@@ -12,7 +12,6 @@
 #include <windows.h>  //needed for gl.h!  --Qamly
 #endif
 #include <SDL/SDL_opengl.h>
-#include <GL/glu.h>
 
 #include "lib/ivis_common/piedef.h"
 #include "lib/ivis_common/pieclip.h"
diff --git a/lib/ivis_opengl/tex.c b/lib/ivis_opengl/tex.c
index 4ffc718e8..530148e5a 100644
--- a/lib/ivis_opengl/tex.c
+++ b/lib/ivis_opengl/tex.c
@@ -1,5 +1,3 @@
-
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -8,7 +6,11 @@
 #include <windows.h>
 #endif
 #include <SDL/SDL_opengl.h>
+#ifdef __APPLE__
+#include <opengl/glu.h>
+#else
 #include <GL/glu.h>
+#endif
 
 #include "lib/framework/frame.h"
 #include "lib/ivis_common/ivisdef.h"
diff --git a/lib/sequence/sequence_stub.c b/lib/sequence/sequence_stub.c
index e415740de..8b31a429e 100644
--- a/lib/sequence/sequence_stub.c
+++ b/lib/sequence/sequence_stub.c
@@ -10,17 +10,17 @@
  */
 /***************************************************************************/
 
+// Standard include file
+#include "lib/framework/frame.h"
+#include "rpl_reader.h"
+#include "sequence.h"
+
 #ifdef WZ_OPENAL_MAC_H
 #include <openal/al.h>
 #else
 #include <AL/al.h>
 #endif
 
-// Standard include file
-#include "lib/framework/frame.h"
-#include "rpl_reader.h"
-#include "sequence.h"
-
 #define DUMMY_VIDEO
 
 RPL* current_sequence = NULL;