diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 50c5f5b22..dbca574b1 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -371,6 +371,20 @@ if( NOT NO_ASM )
 	ENDMACRO( ADD_ASM_FILE )
 endif( NOT NO_ASM )
 
+# OpenGL on OS X: Search for GLEW include files
+
+if( APPLE )
+	find_path( GLEW_INCLUDE_DIR GL/glew.h
+		PATHS "/usr/include"
+		"/usr/local/include" )
+
+	if( GLEW_INCLUDE_DIR )
+		message( STATUS "GLEW include files found at ${GLEW_INCLUDE_DIR}" )
+	else( GLEW_INCLUDE_DIR )
+		message( SEND_ERROR "Could not find GLEW include files" )
+	endif( GLEW_INCLUDE_DIR )
+endif( APPLE )
+
 # Decide on SSE setup
 
 set( SSE_MATTERS NO )
@@ -522,6 +536,12 @@ if( FLUIDSYNTH_FOUND )
   endif( NOT DYN_FLUIDSYNTH )
 endif( FLUIDSYNTH_FOUND )
 
+# OpenGL on OS X: GLEW include directory
+
+if( APPLE )
+	include_directories( "${GLEW_INCLUDE_DIR}" )
+endif( APPLE )
+
 # Start defining source files for ZDoom
 
 if( WIN32 )
diff --git a/src/gl/system/gl_interface.h b/src/gl/system/gl_interface.h
index 3d54bf8f6..a6c583343 100644
--- a/src/gl/system/gl_interface.h
+++ b/src/gl/system/gl_interface.h
@@ -3,6 +3,7 @@
 
 #if defined(__APPLE__)
 #define APIENTRY
+#define APIENTRYP *
 #endif // __APPLE__
 
 #include "basictypes.h"
diff --git a/src/sdl/iwadpicker_cocoa.mm b/src/sdl/iwadpicker_cocoa.mm
index 1a1fa8b8c..45f0d1a8f 100644
--- a/src/sdl/iwadpicker_cocoa.mm
+++ b/src/sdl/iwadpicker_cocoa.mm
@@ -156,14 +156,14 @@ static const char* const tableHeaders[NUM_COLUMNS] = { "IWAD", "Game" };
 	cancelled = false;
 
 	app = [NSApplication sharedApplication];
-	id windowTitle = [NSString stringWithUTF8String:GAMESIG " " DOTVERSIONSTR ": Select an IWAD to use"];
+	id windowTitle = [NSString stringWithFormat:@"%s %s", GAMESIG, GetVersionString()];
 
 	NSRect frame = NSMakeRect(0, 0, 440, 450);
 	window = [[NSWindow alloc] initWithContentRect:frame styleMask:NSTitledWindowMask backing:NSBackingStoreBuffered defer:NO];
 	[window setTitle:windowTitle];
 
 	NSTextField *description = [[NSTextField alloc] initWithFrame:NSMakeRect(22, 379, 412, 50)];
-	[self makeLabel:description:"ZDoom found more than one IWAD\nSelect from the list below to determine which one to use:"];
+	[self makeLabel:description:"GZDoom found more than one IWAD\nSelect from the list below to determine which one to use:"];
 	[[window contentView] addSubview:description];
 	[description release];
 
diff --git a/src/sdl/sdlglvideo.cpp b/src/sdl/sdlglvideo.cpp
index 6378381e4..9ee54b4e8 100644
--- a/src/sdl/sdlglvideo.cpp
+++ b/src/sdl/sdlglvideo.cpp
@@ -321,7 +321,9 @@ SDLGLFB::SDLGLFB (void *, int width, int height, int, int, bool fullscreen)
 	
 #if defined(__APPLE__)
 	// Need to set title here because a window is not created yet when calling the same function from main()
-	SDL_WM_SetCaption( GAMESIG " " DOTVERSIONSTR " (" __DATE__ ")", NULL );
+	char caption[100];
+	mysnprintf(caption, countof(caption), GAMESIG " %s (%s)", GetVersionString(), GetGitTime());
+	SDL_WM_SetCaption(caption, NULL);
 #endif // __APPLE__
 }