--- boost_1_55_0/boost/detail/interlocked.hpp 2013-10-24 09:01:53.000000000 -0500 +++ boost_1_55_0/boost/detail/interlocked.hpp 2014-08-31 13:01:33.830313500 -0500 @@ -160,7 +160,7 @@ extern "C" void* __cdecl _InterlockedExc ((void*)BOOST_INTERLOCKED_EXCHANGE((long volatile*)(dest),(long)(exchange))) # endif -#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __CYGWIN__ ) +#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) #define BOOST_INTERLOCKED_IMPORT __declspec(dllimport)