--- a/config.rpath	2008-03-13 14:27:44.000000000 -0500
+++ b/config.rpath	2010-07-11 23:30:45.209832800 -0500
@@ -441,7 +441,7 @@ case "$host_os" in
   bsdi4*)
     ;;
   cygwin* | mingw* | pw32*)
-    shrext=.dll
+    shrext=.dll.a
     ;;
   darwin* | rhapsody*)
     shrext=.dylib