--- origsrc/Lib/distutils/unixccompiler.py.orig	2012-11-27 07:44:15.409993500 -0500
+++ src/Lib/distutils/unixccompiler.py	2012-11-27 08:09:57.801770900 -0500
@@ -141,6 +141,7 @@
     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,