Fix builtins caching

Cython/Compiler/ExprNodes.py

@@ -815,7 +815,7 @@ class NameNode(AtomicExprNode):
         if entry.is_pyglobal or entry.is_builtin:
             assert type.is_pyobject, "Python global or builtin not a Python object"
             if Options.intern_names:
-                self.interned_cname = env.intern(self.entry.name)
+                self.interned_cname = self.entry.interned_cname = env.intern(self.entry.name)
 
     def check_identifier_kind(self):
         #print "NameNode.check_identifier_kind:", self.entry.name ###

Cython/Compiler/ModuleNode.py

@@ -1239,9 +1239,9 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
         code.putln("/*--- String init code ---*/")
         self.generate_string_init_code(env, code)
 
-        code.putln("/*--- Builtin init code ---*/")
-        # TODO: FIXME !!
-        #self.generate_builtin_init_code(env, code)
+        if Options.cache_builtins:
+            code.putln("/*--- Builtin init code ---*/")
+            self.generate_builtin_init_code(env, code)
 
         code.putln("/*--- Global init code ---*/")
         self.generate_global_init_code(env, code)

Cython/Compiler/Options.py

@@ -3,7 +3,7 @@
 #
 
 intern_names = 1    #  Intern global variable and attribute names
-cache_builtins = 0  #  Perform lookups on builtin names only once
+cache_builtins = 1  #  Perform lookups on builtin names only once
 
 embed_pos_in_docstring = 0
 gcc_branch_hints = 1