Partial patch from SF #452266, by Jason Petrone.

This changes Pythread_start_thread() to return the thread ID, or -1
for an error.  (It's technically an incompatible API change, but I
doubt anyone calls it.)
diff --git a/Python/thread_wince.h b/Python/thread_wince.h
index 3790bda..b5129b2 100644
--- a/Python/thread_wince.h
+++ b/Python/thread_wince.h
@@ -22,10 +22,10 @@
 /*
  * Thread support.
  */
-int PyThread_start_new_thread(void (*func)(void *), void *arg)
+long PyThread_start_new_thread(void (*func)(void *), void *arg)
 {
 	long rv;
-	int success = 0;
+	int success = -1;
 
 	dprintf(("%ld: PyThread_start_new_thread called\n", PyThread_get_thread_ident()));
 	if (!initialized)
@@ -34,7 +34,7 @@
 	rv = _beginthread(func, 0, arg); /* use default stack size */
  
 	if (rv != -1) {
-		success = 1;
+		success = 0;
 		dprintf(("%ld: PyThread_start_new_thread succeeded:\n", PyThread_get_thread_ident()));
 	}