Index: makefile
===================================================================
--- makefile	(revision eba8c0cc2de18697994e16dfe2991f9dc10565e5)
+++ makefile	(revision 4eb4d0a332ded1fe7cb82507024c5363538786eb)
@@ -53,6 +53,6 @@
 LIB_FLAGS = $(LIB_PATHS) $(LIBS)
 
-vulkangame: vulkan-game.cpp game-gui-sdl.cpp
-	$(CC) $(CXX_FLAGS) -o $@ $^ $(LIB_FLAGS)
+vulkanref: vulkan-ref.cpp game-gui-sdl.cpp
+	$(CC) $(CXX_FLAGS) -o $@ $^ $(LIB_FLAGS) -DGAMEGUI_INCLUDE_VULKAN
 
 spacegame: main.cpp space-game.cpp game-gui-sdl.cpp
@@ -65,5 +65,5 @@
 clean:
 	rm -f newgame
-	rm -f vulkangame
+	rm -f vulkanref
 	rm -f spacegame
 	rm -f shaders/*.spv