diff --git a/Include/ceval.h b/Include/ceval.h
index e1af801..9bb145d 100644
--- a/Include/ceval.h
+++ b/Include/ceval.h
@@ -48,6 +48,8 @@
 PyAPI_FUNC(char *) PyEval_GetFuncName(PyObject *);
 PyAPI_FUNC(char *) PyEval_GetFuncDesc(PyObject *);
 
+PyAPI_FUNC(PyObject *) PyEval_GetCallStats(PyObject *);
+
 /* this used to be handled on a per-thread basis - now just two globals */
 PyAPI_DATA(volatile int) _Py_Ticker;
 PyAPI_DATA(int) _Py_CheckInterval;
diff --git a/Include/compile.h b/Include/compile.h
index a462d77..594d7df 100644
--- a/Include/compile.h
+++ b/Include/compile.h
@@ -34,6 +34,12 @@
 #define CO_VARKEYWORDS	0x0008
 #define CO_NESTED       0x0010
 #define CO_GENERATOR    0x0020
+/* The CO_NOFREE flag is set if there are no free or cell variables.
+   This information is redundant, but it allows a single flag test
+   to determine whether there is any extra work to be done when the
+   call frame it setup.
+*/
+#define CO_NOFREE       0x0040
 /* XXX Temporary hack.  Until generators are a permanent part of the
    language, we need a way for a code object to record that generators
    were *possible* when it was compiled.  This is so code dynamically