#if MIN_VERSION_process(1,6,3)
getProcessID' = System.Process.getPid
#else
+#if MIN_VERSION_process(1,6,0)
getProcessID' (ProcessHandle mh _ _) = do
+#else
+ getProcessID' (ProcessHandle mh _) = do
+#endif
p_ <- readMVar mh
case p_ of
#ifdef mingw32_HOST_OS