Added 2 options to the Makefiles (enable in environment, user-def.mk,

or whatever):

NAN_NO_KETSJI: when set to true, disables compilation of the game engine.
NAN_JUST_BLENDERDYNAMIC: when set to true, only dynamic executable is
build (i.e., no plugin, etc).

Note that NAN_NO_KETSJI implies NAN_JUST_BLENDERDYNAMIC.

source/Makefile

@@ -38,7 +38,11 @@ endif
 
 include nan_definitions.mk
 
-DIRS = creator blender kernel gameengine
+DIRS = creator blender kernel
+
+ifneq ($(NAN_NO_KETSJI),true)
+   DIRS += gameengine
+endif
 
 ifeq ($(OS),windows)
     DIRS += icons
@@ -98,6 +102,7 @@ PYPLAYERLIB ?= $(PYLIB)
     COMLIB += $(OCGDIR)/blender/blenlib/$(DEBUG_DIR)libblenlib.a
     COMLIB += $(OCGDIR)/blender/avi/$(DEBUG_DIR)libavi.a
     COMLIB += $(NAN_JPEG)/lib/libjpeg.a
+ifneq ($(NAN_NO_KETSJI),true)
     COMLIB += $(OCGDIR)/gameengine/bloutines/$(DEBUG_DIR)libbloutines.a
     COMLIB += $(OCGDIR)/gameengine/blconverter/$(DEBUG_DIR)libblconverter.a
     COMLIB += $(OCGDIR)/gameengine/blphys/common/$(DEBUG_DIR)libcommon.a
@@ -131,6 +136,7 @@ PYPLAYERLIB ?= $(PYLIB)
     COMLIB += $(OCGDIR)/gameengine/ketsji/KXNetwork/$(DEBUG_DIR)libKXNetwork.a
     COMLIB += $(OCGDIR)/gameengine/Network/$(DEBUG_DIR)libNetwork.a
     COMLIB += $(OCGDIR)/gameengine/Network/LoopBackNetwork/$(DEBUG_DIR)libLoopBackNetwork.a
+endif
     COMLIB += $(NAN_GUARDEDALLOC)/lib/libguardedalloc.a
     COMLIB += $(NAN_BMFONT)/lib/$(DEBUG_DIR)libbmfont.a
     COMLIB += $(NAN_PNG)/lib/libpng.a
@@ -207,6 +213,13 @@ endif
     PULIB += $(OCGDIR)/blender/readstreamglue/$(DEBUG_DIR)libreadstreamglue.a # KEY_dependkludge fix.. Remove me
     PULIB += $(OCGDIR)/blender/src/$(DEBUG_DIR)libsrcpublisher.a
 
+ifeq ($(NAN_NO_KETSJI),true)
+    PULIB += $(NAN_MOTO)/lib/libmoto.a
+    PULIB += $(OCGDIR)/kernel/gen_system/$(DEBUG_DIR)libgen_system.a
+    PULIB += $(OCGDIR)/kernel/gen_messaging/$(DEBUG_DIR)libgen_messaging.a
+    COMLIB += $(NAN_SND_LIBS)
+endif
+
     SPLIB1 = $(OCGDIR)/gameengine/GamePlayer/ghost/$(DEBUG_DIR)libghost.a
     SPLIB1 += $(OCGDIR)/gameengine/GamePlayer/common/$(DEBUG_DIR)libcommon.a
     SPLIB1 += $(NAN_STRING)/lib/$(DEBUG_DIR)libstring.a
@@ -447,6 +460,15 @@ ifeq ($(OS),windows)
   endif
 endif
 
+ifeq ($(NAN_JUST_BLENDERDYNAMIC),true)
+  ifeq ($(OS),darwin)
+    BINTARGETS = blenderdynamic.app
+  else
+    BINTARGETS = blenderdynamic
+  endif
+endif
+
+
 # prepare for NAN_BUILDINFO compile at the *sigh* link rules below
 
 ifdef NAN_BUILDINFO

source/blender/src/space.c

@@ -369,6 +369,7 @@ static void restore_all_scene_cfra(LinkNode *storelist) {
 void start_game(void)
 {
 #if GAMEBLENDER == 1
+#ifndef NAN_NO_KETSJI
 	Scene *sc, *startscene = G.scene;
 	LinkNode *scene_cfra_store;
 
@@ -426,6 +427,7 @@ void start_game(void)
 	allqueue(REDRAWACTION, 0);
 	allspace(REMAKEIPO, 0);
 	allqueue(REDRAWIPO, 0);
+#endif
 #else
 	notice("Game engine is disabled in this release!");
 #endif

source/gameengine/Makefile

@@ -38,6 +38,10 @@ DIR = $(OCGDIR)/gameengine
 DIRS = BlenderRoutines
 DIRS += Converter
 DIRS += Expressions GameLogic Ketsji Rasterizer SceneGraph
-DIRS += Network GamePlayer Physics
+DIRS += Network Physics
+
+ifneq ($(NAN_JUST_BLENDERDYNAMIC),true)
+  DIRS += GamePlayer
+endif
 
 include nan_subdirs.mk

source/nan_compile.mk

@@ -50,6 +50,12 @@ REL_CCFLAGS	+= -DNDEBUG
 DBG_CFLAGS	+= -g
 DBG_CCFLAGS	+= -g
 
+# Is the game engine getting you down? ---------------------------------
+   
+ifeq ($(NAN_NO_KETSJI), true)
+   CPPFLAGS += -DNO_KETSJI
+endif
+
 # OS dependent parts ---------------------------------------------------
 
 ifeq ($(OS),beos)

source/nan_definitions.mk

@@ -467,6 +467,7 @@ all debug::
     # enable freetype2 support for text objects
     #export WITH_FREETYPE2 ?= true
   endif
+
 endif
 endif
 endif
@@ -475,3 +476,9 @@ endif
 endif
 endif
 endif
+
+# Don't want to build the gameengine?
+ifeq ($(NAN_NO_KETSJI), true)
+   export NAN_JUST_BLENDERDYNAMIC=true
+   export NAN_NO_OPENAL=true
+endif