--- unixccompiler.py.orig	2008-09-09 08:22:44.808902600 -0400
+++ unixccompiler.py	2008-09-23 15:29:58.647596700 -0400
@@ -137,6 +137,7 @@
     static_lib_format = shared_lib_format = dylib_lib_format = "lib%s%s"
     if sys.platform == "cygwin":
         exe_extension = ".exe"
+        dylib_lib_extension = ".dll.a"
 
     def preprocess(self, source,
                    output_file=None, macros=None, include_dirs=None,