Fix a few warnings from system GCC 4.2.1 in OS X 10.7.3

Cython/Compiler/ModuleNode.py

@@ -811,8 +811,8 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
             if not method_entry.is_inherited and method_entry.final_func_cname:
                 declaration = method_entry.type.declaration_code(
                     method_entry.final_func_cname)
-                if entry.func_modifiers:
-                    modifiers = "%s " % ' '.join(entry.func_modifiers).upper()
+                if method_entry.func_modifiers:
+                    modifiers = "%s " % ' '.join(method_entry.func_modifiers).upper()
                 else:
                     modifiers = ''
                 code.putln("static %s%s;" % (modifiers, declaration))

Cython/Compiler/Nodes.py

@@ -4258,7 +4258,7 @@ class OverrideCheckNode(StatNode):
             func_node_temp, self_arg, interned_attr_cname, err))
         code.put_gotref(func_node_temp)
         is_builtin_function_or_method = "PyCFunction_Check(%s)" % func_node_temp
-        is_overridden = "(PyCFunction_GET_FUNCTION(%s) != (void *)&%s)" % (
+        is_overridden = "(PyCFunction_GET_FUNCTION(%s) != (PyCFunction)%s)" % (
             func_node_temp, self.py_func.entry.func_cname)
         code.putln("if (!%s || %s) {" % (is_builtin_function_or_method, is_overridden))
         self.body.generate_execution_code(code)

Cython/Utility/Buffer.c

@@ -161,7 +161,7 @@ static void __Pyx_ReleaseBuffer(Py_buffer *view) {
 
     {{for type_ptr, getbuffer, releasebuffer in types}}
       {{if releasebuffer}}
-        if (PyObject_TypeCheck(obj, {{type_ptr}})) return {{releasebuffer}}(obj, view);
+        if (PyObject_TypeCheck(obj, {{type_ptr}})) { {{releasebuffer}}(obj, view); return; }
       {{endif}}
     {{endfor}}
 

Cython/Utility/CythonFunction.c

@@ -385,10 +385,10 @@ __Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
 
 #if PY_MAJOR_VERSION >= 3
     return PyUnicode_FromFormat("<cyfunction %U at %p>",
-                               func_name, op);
+                                func_name, (void *)op);
 #else
     return PyString_FromFormat("<cyfunction %s at %p>",
-                               PyString_AsString(func_name), op);
+                               PyString_AsString(func_name), (void *)op);
 #endif
 }