[merge] using zdll on Windows to build _chk_map_pyx extension

[Bundle Buggy]

Bundle Buggy has detected this merge request.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3Cgvlrvb%24mp0%241%40ger.gmane.org%3E
Project: Bazaar