Eric Huss's readonly variable patch:

There's a minor bug, if you try to cdef a readonly variable at the module
scope, the compiler raises an UnboundLocalError exception.  The attached
patch seems to clear up the problem and gets the compiler to report the
correct error.

Cython/Compiler/Code.py

@@ -183,6 +183,8 @@ class CCodeWriter:
                 storage_class = "static"
             else:
                 storage_class = ""
+	else:
+	    storage_class = ""
         if storage_class:
             self.put("%s " % storage_class)
         #if visibility == 'extern' or visibility == 'public' and not definition: