From 2753c5176ac4778e8702f48e638b7b7096cacdb8 Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Sat, 19 Sep 1998 05:43:12 +0000
Subject: [PATCH] FreeBSD2 has POSIX_THREADS but is missing sched_yield()

---
 libraries/liblthread/thread.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libraries/liblthread/thread.c b/libraries/liblthread/thread.c
index a0bf1e5f5c..d0a62d5a81 100644
--- a/libraries/liblthread/thread.c
+++ b/libraries/liblthread/thread.c
@@ -491,15 +491,17 @@ pthread_kill( pthread_t tid, int sig )
 
 #if defined ( POSIX_THREADS )
 
+#ifdef HAVE_SCHED_YIELD
 #ifdef HAVE_SCHED_H
 #include <sched.h>
-#endif
+#endif /* HAVE_SCHED_H */
 
 /* POSIX Threads (final) does have a pthread_yield function */
 void pthread_yield( void )
 {
 	sched_yield();
 }
+#endif /* HAVE_SCHED_YIELD */
 
 #endif /* posix threads */
 #endif /* dce pthreads */
-- 
2.39.5