Ship builds with os.Worker support

[JerwuQu]

Since already building with MinGW and pthreads, perhaps os.Worker could be supported?

Adding -DUSE_WORKER and a macro for pipe like #define pipe(fds) _pipe(fds, 4096, _O_BINARY) seems to do it.

[vaguinerg]

Since already building with MinGW and pthreads, perhaps os.Worker could be supported?

Adding -DUSE_WORKER and a macro for pipe like #define pipe(fds) _pipe(fds, 4096, _O_BINARY) seems to do it.

I tried to do what you advised. While it compiles successfully, the worker just doesn't work (no errors, it just doesn't work)