diff -r bb94f6222fef setup.py
--- a/setup.py	Wed Dec 19 14:33:35 2012 +0200
+++ b/setup.py	Wed Dec 19 19:56:47 2012 +0000
@@ -1523,6 +1523,9 @@ class PyBuildExt(build_ext):
         # Call the method for detecting whether _tkinter can be compiled
         self.detect_tkinter(inc_dirs, lib_dirs)
 
+        # Maybe enable the toy module
+        self.maybe_enable_xxmodule(force=False)
+
         if '_tkinter' not in [e.name for e in self.extensions]:
             missing.append('_tkinter')
 
@@ -1723,14 +1726,6 @@ class PyBuildExt(build_ext):
                         )
         self.extensions.append(ext)
 
-##         # Uncomment these lines if you want to play with xxmodule.c
-##         ext = Extension('xx', ['xxmodule.c'])
-##         self.extensions.append(ext)
-        if 'd' not in sys.abiflags:
-            ext = Extension('xxlimited', ['xxlimited.c'],
-                            define_macros=[('Py_LIMITED_API', 1)])
-            self.extensions.append(ext)
-
         # XXX handle these, but how to detect?
         # *** Uncomment and edit for PIL (TkImaging) extension only:
         #       -DWITH_PIL -I../Extensions/Imaging/libImaging  tkImaging.c \
@@ -1739,6 +1734,16 @@ class PyBuildExt(build_ext):
         # *** Uncomment these for TOGL extension only:
         #       -lGL -lGLU -lXext -lXmu \
 
+    def maybe_enable_xxmodule(self, force):
+        # force = True # uncomment this line to build xxmodule.c
+        if force:
+            ext = Extension('xx', ['xxmodule.c'])
+            self.extensions.append(ext)
+        if 'd' not in sys.abiflags:
+            ext = Extension('xxlimited', ['xxlimited.c'],
+                            define_macros=[('Py_LIMITED_API', 1)])
+            self.extensions.append(ext)
+
     def configure_ctypes_darwin(self, ext):
         # Darwin (OS X) uses preconfigured files, in
         # the Modules/_ctypes/libffi_osx directory.