better Py -> C conversion for integral types (ticket #255)

Cython/Compiler/ModuleNode.py

@@ -565,6 +565,12 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
 
         env.use_utility_code(streq_utility_code)
 
+        # XXX this is a mess
+        for utility_code in PyrexTypes.c_int_from_py_function.specialize_list:
+            env.use_utility_code(utility_code)
+        for utility_code in PyrexTypes.c_long_from_py_function.specialize_list:
+            env.use_utility_code(utility_code)
+
     def generate_extern_c_macro_definition(self, code):
         name = Naming.extern_c_macro
         code.putln("#ifdef __cplusplus")

Cython/Utils.py

@@ -105,6 +105,7 @@ class UtilityCode(object):
         self.cleanup = cleanup
         self.requires = requires
         self._cache = {}
+        self.specialize_list = []
 
     def write_init_code(self, writer, pos):
         if not self.init:
@@ -141,4 +142,5 @@ class UtilityCode(object):
                                         none_or_sub(self.init, data),
                                         none_or_sub(self.cleanup, data),
                                         requires)
+            self.specialize_list.append(s)
             return s