Improved Windows ABI support

examples/thread/thread.q

@@ -1,7 +1,6 @@
 import io
 import sys
 import thread
-import time
 
 main() {
 	thread.create(work)
@@ -12,7 +11,6 @@ main() {
 
 work() {
 	io.out("[ ] start\n")
-	time.sleep(10 * 1000 * 1000)
 	io.out("[x] end\n")
 	sys.exit(0)
 }