--- boost_1_40_0/boost/iostreams/detail/config/wide_streams.hpp	2008-03-22 16:45:55.000000000 -0500
+++ boost_1_40_0/boost/iostreams/detail/config/wide_streams.hpp	2009-08-27 23:41:34.082544800 -0500
@@ -44,8 +44,7 @@
 //------------------Locale support--------------------------------------------//
 
 #ifndef BOOST_IOSTREAMS_NO_LOCALE
-# if defined(BOOST_NO_STD_LOCALE) || \
-     defined(__CYGWIN__) && \
+# if defined(BOOST_NO_STD_LOCALE) && \
      ( !defined(__MSL_CPP__) || defined(_MSL_NO_WCHART_CPP_SUPPORT) ) \
      /**/
 #  define BOOST_IOSTREAMS_NO_LOCALE
--- boost_1_40_0/boost/iostreams/detail/config/windows_posix.hpp	2008-03-22 16:45:55.000000000 -0500
+++ boost_1_40_0/boost/iostreams/detail/config/windows_posix.hpp	2009-08-27 23:41:34.087545100 -0500
@@ -13,8 +13,7 @@
 
 // BOOST_IOSTREAMS_POSIX or BOOST_IOSTREAMS_WINDOWS specify which API to use.
 #if !defined( BOOST_IOSTREAMS_WINDOWS ) && !defined( BOOST_IOSTREAMS_POSIX )
-# if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32)) && \
-     !defined(__CYGWIN__) \
+# if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32))
      /**/
 #  define BOOST_IOSTREAMS_WINDOWS
 # else