Patch (by Andrew Kuchling of course) to prevent named back references
in the pattern to wear out the reference count on small integers.
diff --git a/Modules/pypcre.c b/Modules/pypcre.c
index 797d955..699932f 100644
--- a/Modules/pypcre.c
+++ b/Modules/pypcre.c
@@ -1832,7 +1832,7 @@
 	      }
 
 	      refnum = PyInt_AsLong(intobj);
-	      Py_DECREF(string); Py_DECREF(intobj);
+	      Py_DECREF(string); 
 	      *code++ = OP_REF;
 	      *code++ = refnum;
 	      /* The continue will cause the top-level for() loop to