Index: Lib/distutils/cygwinccompiler.py
===================================================================
--- Lib/distutils/cygwinccompiler.py	(revision 61699)
+++ Lib/distutils/cygwinccompiler.py	(working copy)
@@ -78,12 +78,14 @@
         else:
             raise ValueError("Unknown MS Compiler version %i " % msc_Ver)
 
+    return []
 
+
 class CygwinCCompiler (UnixCCompiler):
 
     compiler_type = 'cygwin'
     obj_extension = ".o"
-    static_lib_extension = ".a"
+    static_lib_extension = ".dll.a"
     shared_lib_extension = ".dll"
     static_lib_format = "lib%s%s"
     shared_lib_format = "%s%s"
Index: Lib/distutils/ccompiler.py
===================================================================
--- Lib/distutils/ccompiler.py	(revision 61699)
+++ Lib/distutils/ccompiler.py	(working copy)
@@ -1057,7 +1057,7 @@
 
     # on a cygwin built python we can use gcc like an ordinary UNIXish
     # compiler
-    ('cygwin.*', 'unix'),
+    ('cygwin.*', 'cygwin'),
     ('os2emx', 'emx'),
 
     # OS name mappings