From 590ae09af786be17812fffad0c43b4c6a1f697f8 Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Wed, 8 Jul 2015 21:51:48 -0500
Subject: builtin_unreachable is not available for older gcc

---
 libpthread/nptl/forward.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libpthread/nptl')

diff --git a/libpthread/nptl/forward.c b/libpthread/nptl/forward.c
index a5c97babd..48d38d9aa 100644
--- a/libpthread/nptl/forward.c
+++ b/libpthread/nptl/forward.c
@@ -160,6 +160,10 @@ FORWARD2(__pthread_unwind,
 		       /* We cannot call abort() here.  */
 		       INTERNAL_SYSCALL_DECL (err);
 		       INTERNAL_SYSCALL (kill, err, 1, SIGKILL);
+#if defined __GNUC__ && (!__GNUC_PREREQ (4, 4) && !__GNUC_PREREQ (4, 2))
 		       __builtin_unreachable();
+#else
+			while(1);
+#endif
 		     })
 #undef return
-- 
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