_M_AMD64 797 lib/zlib/contrib/inflate86/inffas86.c #elif defined( _MSC_VER ) && ! defined( _M_AMD64 ) _M_AMD64 116 lib/zlib/contrib/masmx64/inffas8664.c #if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))