Charles Waldman's patch to reinitialize the interpreter lock after a

fork.  This solves the test_fork1 problem.  (ceval.c, signalmodule.c,
intrcheck.c)

SourceForge: [ Patch #101226 ] make threading fork-safe

Modules/signalmodule.c

@@ -667,6 +667,7 @@ void
 PyOS_AfterFork(void)
 {
 #ifdef WITH_THREAD
+	PyEval_ReInitThreads();
 	main_thread = PyThread_get_thread_ident();
 	main_pid = getpid();
 #endif