<sho_pi@hotmail.com>)
p4raw-id: //depot/perl@4682
StreamId.dwStreamId = BACKUP_LINK;
StreamId.dwStreamAttributes = 0;
StreamId.dwStreamNameSize = 0;
-#ifdef __BORLANDC__
+#if defined(__BORLANDC__) || defined(__MINGW32__)
StreamId.Size.u.HighPart = 0;
StreamId.Size.u.LowPart = dwLen;
#else