SF Patch #902444: Use process scope thread on FreeBSD. System scope
is too expensive on FreeBSD's KSE threading infrastructure and
even test_threadedimport fails on default setting.
diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
index 8645c0f..d18d2de 100644
--- a/Python/thread_pthread.h
+++ b/Python/thread_pthread.h
@@ -133,7 +133,7 @@
#ifdef THREAD_STACK_SIZE
pthread_attr_setstacksize(&attrs, THREAD_STACK_SIZE);
#endif
-#ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
+#if defined(PTHREAD_SYSTEM_SCHED_SUPPORTED) && !defined(__FreeBSD__)
pthread_attr_setscope(&attrs, PTHREAD_SCOPE_SYSTEM);
#endif