libatomic_ops: Update repository and bump version

Change the download source to a Github repository which is more recent.
This patch also bump libatomic_ops version and remove a patch that is
now upstream.

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libatomic_ops/libatomic_ops-nothread-build-failure-fix.patch

@@ -1,41 +0,0 @@
-From 7e940ce34ff4de254d460344f1a1a486a14fb045 Mon Sep 17 00:00:00 2001
-From: Gilles Talis <gilles.talis@gmail.com>
-Date: Wed, 22 May 2013 16:21:26 -0700
-Subject: [PATCH] Fix build failure seen when using toolchain without threads support
-
-Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
----
- src/atomic_ops.c |    4 ++++
- 1 files changed, 4 insertions(+), 0 deletions(-)
-
-diff --git a/src/atomic_ops.c b/src/atomic_ops.c
-index b6731a2..5769643 100644
---- a/src/atomic_ops.c
-+++ b/src/atomic_ops.c
-@@ -48,7 +48,9 @@
- 
- #undef AO_REQUIRE_CAS
- 
-+#if defined(AO_USE_PTHREAD_DEFS)
- #include <pthread.h>
-+#endif
- 
- #ifndef AO_USE_NO_SIGNALS
- # include <signal.h>
-@@ -72,11 +74,13 @@
- # include "atomic_ops/sysdeps/standard_ao_double_t.h"
- #endif
- 
-+#if defined(AO_USE_PTHREAD_DEFS)
- /*
-  * Lock for pthreads-based implementation.
-  */
- 
- pthread_mutex_t AO_pt_lock = PTHREAD_MUTEX_INITIALIZER;
-+#endif
- 
- /*
-  * Out of line compare-and-swap emulation based on test and set.
--- 
-1.7.4.1
-

package/libatomic_ops/libatomic_ops.mk

@@ -4,8 +4,9 @@
 #
 ################################################################################
 
-LIBATOMIC_OPS_VERSION = 7.2
-LIBATOMIC_OPS_SITE = http://www.hpl.hp.com/research/linux/atomic_ops/download
+LIBATOMIC_OPS_VERSION = libatomic_ops-7_4_0
+LIBATOMIC_OPS_SITE = $(call github,ivmai,libatomic_ops,$(LIBATOMIC_OPS_VERSION))
+LIBATOMIC_OPS_AUTORECONF = YES
 
 # From doc/LICENSING.txt: "Our intent is to make it easy to use
 # libatomic_ops, in both free and proprietary software.  Hence most
@@ -14,7 +15,7 @@ LIBATOMIC_OPS_SITE = http://www.hpl.hp.com/research/linux/atomic_ops/download
 # by the GNU General Public License. These are put into a separate
 # library, libatomic_ops_gpl.a."
 LIBATOMIC_OPS_LICENSE = MIT (main library) / GPLv2+ (gpl extension)
-LIBATOMIC_OPS_LICENSE_FILES = doc/LICENSING.txt doc/COPYING
+LIBATOMIC_OPS_LICENSE_FILES = doc/LICENSING.txt COPYING
 
 LIBATOMIC_OPS_INSTALL_STAGING = YES