+++ /dev/null
-From 5a635a0066b10d2ba25e0ce78cc57b2be619371c Mon Sep 17 00:00:00 2001
-From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Date: Mon, 8 Aug 2016 23:34:32 +0200
-Subject: [PATCH] wscript: improve stdatomic check
-
-The current stdatomic check verifies the availability of the function by
-calling atomic_load(). It also uses this test to check if linking
-against libatomic is needed or not.
-
-Unfortunately, on specific architectures (namely SPARC), using
-atomic_load() does *not* require linking against libatomic, while other
-atomic operations do. Due to this, mpv's wscript concludes that
-stdatomic is available, and that linking against libatomic is not
-needed, causing the following link failure:
-
-[190/190] Linking build/mpv
-audio/out/ao.c.13.o: In function `ao_query_and_reset_events':
-/home/peko/autobuild/instance-0/output/build/mpv-0.18.1/build/../audio/out/ao.c:399: undefined reference to `__atomic_fetch_and_4'
-
-In order to fix this, the stdatomic check is adjusted to call
-atomic_fetch_add() instead, which does require libatomic. Thanks to
-this, the wscript realizes that linking against libatomic is needed, and
-the build works fine.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
----
-Submitted upstream: https://github.com/mpv-player/mpv/pull/3403
-
- wscript | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/wscript b/wscript
-index a18df6f..4c49caf 100644
---- a/wscript
-+++ b/wscript
-@@ -154,7 +154,7 @@ main_dependencies = [
- 'func': check_libs(['atomic'],
- check_statement('stdatomic.h',
- 'atomic_int_least64_t test = ATOMIC_VAR_INIT(123);'
-- 'int test2 = atomic_load(&test)'))
-+ 'atomic_fetch_add(&test, 1)'))
- }, {
- 'name': 'atomic-builtins',
- 'desc': 'compiler support for __atomic built-ins',
---
-2.7.4
-