Added xx and xxsubtype modules, for completeness and because xxsubtype is used by the test suite.
diff --git a/Mac/scripts/genpluginprojects.py b/Mac/scripts/genpluginprojects.py
index 1841d0a..6d2107b 100644
--- a/Mac/scripts/genpluginprojects.py
+++ b/Mac/scripts/genpluginprojects.py
@@ -109,7 +109,10 @@
 		extradirs=["::::gdbm:mac", "::::gdbm"])
 	genpluginproject("all", "_weakref", sources=["_weakref.c"])
 	genpluginproject("all", "_symtable", sources=["symtablemodule.c"])
+	# Example/test modules
 	genpluginproject("all", "_testcapi")
+	genpluginproject("all", "xx")
+	genpluginproject("all", "xxsubtype", sources=["xxsubtype.c"])
 	
 	# bgen-generated Toolbox modules
 	genpluginproject("carbon", "_AE", outputdir="::Lib:Carbon")