There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
Spinning here is supposed to improve performance by avoiding scheduling
overhead, but because ReactOS's Win32 subsystem does not deal with this well,
it causes the system to freeze on ROS.
As a workaround, we disable spinning and jump directly to the wait.
It should become obvious when this starts actually causing performance issues
again and it's time to undo.
