--- setup.py.link	2011-07-20 09:31:35.000000000 +0200
+++ setup.py	2011-07-20 09:33:39.000000000 +0200
@@ -77,7 +77,7 @@
       packages = ('async', 'async.mod', 'async.test', 'async.test.mod'),
       package_data={'async' : ['AUTHORS', 'README']},
       package_dir = {'async':''},
-      ext_modules=[Extension('async.mod.zlib', ['mod/zlibmodule.c'])],
+      ext_modules=[Extension('async.mod.zlib', ['mod/zlibmodule.c'], libraries=['z'])],
       license = "BSD License",
       zip_safe=False,
       long_description = """Async is a framework to process interdependent tasks in a pool of workers"""