From e19060d89f219fda16d3bd86e2b3db472f884c98 Mon Sep 17 00:00:00 2001
From: Alessandro Ghedini <alessandro@ghedini.me>
Date: Mon, 30 Dec 2013 16:30:30 +0100
Subject: build: check for libatomic and __atomic operations

Add check in old-configure as well. Reformat the check to use a maximum of 80
columns in the wscript.
Signed-off-by: Stefano Pigozzi <stefano.pigozzi@gmail.com>
---
 wscript | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'wscript')

diff --git a/wscript b/wscript
index 0e23e57560..7a6ee4fb02 100644
--- a/wscript
+++ b/wscript
@@ -98,6 +98,13 @@ main_dependencies = [
         'func': check_pthreads,
         'req': True,
         'fmsg': 'Unable to find pthreads support.'
+    }, {
+        'name': 'atomic_builtins',
+        'desc': 'compiler support for __atomic built-ins',
+        'func': check_libs(['atomic'],
+            check_statement('stdint.h',
+                'int64_t test = 0;'
+                'test = __atomic_add_fetch(&test, 1, __ATOMIC_SEQ_CST)'))
     }, {
         'name': 'librt',
         'desc': 'linking with -lrt',
-- 
cgit v1.2.3