Fixed header dependencies to be fully compatible with the Windows
[wine] / scheduler /
drwxr-xr-x   ..
-rw-r--r-- 22630 client.c
-rw-r--r-- 6464 fiber.c
-rw-r--r-- 5524 handle.c
-rw-r--r-- 52642 process.c
-rw-r--r-- 26292 pthread.c
-rw-r--r-- 5881 synchro.c
-rw-r--r-- 6995 syslevel.c
-rw-r--r-- 13969 thread.c