From 6695ba89de69ee3857f0e394967a379b2d847213 Mon Sep 17 00:00:00 2001
From: Christian Tismer <tismer@stackless.com>
Date: Tue, 20 May 2003 15:14:31 +0000
Subject: [PATCH] Preserved one bit in type objects for Stackless. The presence
 of this bit controls, whether there are special fields for non-recursive
 calls.

---
 Include/object.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Include/object.h b/Include/object.h
index 3c7264f7977..16874572f24 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -488,6 +488,13 @@ given type object has a specified feature.
 /* Objects support garbage collection (see objimp.h) */
 #define Py_TPFLAGS_HAVE_GC (1L<<14)
 
+/* Objects support special, non-recursive calls (reserved for Stackless) */
+#ifdef STACKLESS
+#define Py_TPFLAGS_HAVE_NR_THINGS (1L<<31)
+#else
+#define Py_TPFLAGS_HAVE_NR_THINGS 0
+#endif
+
 #define Py_TPFLAGS_DEFAULT  ( \
                              Py_TPFLAGS_HAVE_GETCHARBUFFER | \
                              Py_TPFLAGS_HAVE_SEQUENCE_IN | \
@@ -496,6 +503,7 @@ given type object has a specified feature.
                              Py_TPFLAGS_HAVE_WEAKREFS | \
                              Py_TPFLAGS_HAVE_ITER | \
                              Py_TPFLAGS_HAVE_CLASS | \
+                             Py_TPFLAGS_HAVE_NR_THINGS | \
                             0)
 
 #define PyType_HasFeature(t,f)  (((t)->tp_flags & (f)) != 0)