[boost] Patch to boost/detail/interlocked.hpp

I am trying to change my call_once implementation for boost.thread, so it doesn't require windows.h to be included. In doing so, I tried to use boost/detail/interlocked.hpp, and discovered that it doesn't work on gcc-mingw-4.0.1, since the imported functions are declared in boost::detail namespace, and the macros don't qualify the names. Attached is a patch for the file that changes the macros to refer to the imported functions by fully qualified names. Please can someone check and commit this for me. Anthony -- Anthony Williams Software Developer