boost-1.47.0-fix-unused.patch

diff --git a/boost/system/error_code.hpp b/boost/system/error_code.hpp
index b22775f..f3091aa 100644
--- a/boost/system/error_code.hpp
+++ b/boost/system/error_code.hpp
@@ -211,9 +211,9 @@ namespace boost
     inline const error_category &  get_system_category() { return system_category(); }
     inline const error_category &  get_generic_category() { return generic_category(); }
     inline const error_category &  get_posix_category() { return generic_category(); }
-    static const error_category &  posix_category = generic_category();
-    static const error_category &  errno_ecat     = generic_category();
-    static const error_category &  native_ecat    = system_category();
+//    static const error_category &  posix_category = generic_category();
+//    static const error_category &  errno_ecat     = generic_category();
+//    static const error_category &  native_ecat    = system_category();
 # endif
 
     //  class error_condition  -----------------------------------------------//