add missing file and fix setup.py so the error would have been caught when I...

add missing file and fix setup.py so the error would have been caught when I ran the tests before the previous checkin

setup.py

@@ -20,7 +20,7 @@ to application logic.  ZODB includes features such as a plugable storage
 interface, rich transaction support, and undo.
 """
 
-VERSION = "3.7.0b3"
+VERSION = "3.8.0a1"
 
 # The (non-obvious!) choices for the Trove Development Status line:
 # Development Status :: 5 - Production/Stable
@@ -83,6 +83,8 @@ def BTreeExtension(flavor):
     if flavor != "fs":
         kwargs["depends"] = (base_btrees_depends + [KEY_H % _flavors[key],
                                                     VALUE_H % _flavors[value]])
+    else:
+        kwargs["depends"] = base_btrees_depends
     if key != "O":
         kwargs["define_macros"] = [('EXCLUDE_INTSET_SUPPORT', None)]
     return Extension(name, sources, **kwargs)

src/BTrees/fsBTree.py

+##############################################################################
+#
+# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE
+#
+##############################################################################
+
+# fsBTrees are data structures used for ZODB FileStorage.  They are not
+# expected to be "public" excpect to FileStorage.
+
+# hack to overcome dynamic-linking headache.
+from _fsBTree import *