From f5dae4894d1078ac8a56026e9ad55c2f0575ce1e Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 25 Oct 2013 16:54:45 +0200
Subject: [PATCH] configure: abort if threading without atomics is used

also provide a list of workarounds to the user

Fixes Ticket2363

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 configure | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index bc111f4613..e382a866dc 100755
--- a/configure
+++ b/configure
@@ -4580,6 +4580,8 @@ enable frame_thread_encoder
 enabled_any $THREADS_LIST      && enable threads
 enabled_any $ATOMICS_LIST      && enable atomics_native
 
+enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
+
 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
 
 check_deps $CONFIG_LIST       \