diff -r bfe042a363e6 Modules/_sre.c
--- a/Modules/_sre.c	Sat Oct 20 20:13:42 2012 +1000
+++ b/Modules/_sre.c	Sun Oct 21 00:49:25 2012 +0300
@@ -1618,7 +1618,7 @@
 static PyObject *
 sre_codesize(PyObject* self, PyObject *unused)
 {
-    return Py_BuildValue("l", sizeof(SRE_CODE));
+    return PyLong_FromSize_t(sizeof(SRE_CODE));
 }
 
 static PyObject *
@@ -2435,7 +2435,7 @@
         return NULL;
 
     if (subn)
-        return Py_BuildValue("Ni", item, n);
+        return Py_BuildValue("Nn", item, n);
 
     return item;
 
@@ -3387,7 +3387,7 @@
     }
 
     /* mark is -1 if group is undefined */
-    return Py_BuildValue("i", self->mark[index*2]);
+    return PyLong_FromSsize_t(self->mark[index*2]);
 }
 
 static PyObject*
@@ -3410,7 +3410,7 @@
     }
 
     /* mark is -1 if group is undefined */
-    return Py_BuildValue("i", self->mark[index*2+1]);
+    return PyLong_FromSsize_t(self->mark[index*2+1]);
 }
 
 LOCAL(PyObject*)
@@ -3560,7 +3560,7 @@
 match_lastindex_get(MatchObject *self)
 {
     if (self->lastindex >= 0)
-        return Py_BuildValue("i", self->lastindex);
+        return PyLong_FromSsize_t(self->lastindex);
     Py_INCREF(Py_None);
     return Py_None;
 }