openvswitch: fix build with musl and GCC 5

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

net/openvswitch/Makefile

@@ -11,7 +11,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=openvswitch
 
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_VERSION:=2.4.0
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 PKG_LICENSE:=Apache-2.0

net/openvswitch/patches/0004-musl-compatibility.patch

@@ -1,8 +1,8 @@
 diff --git a/configure.ac b/configure.ac
-index 8d47eb9..69eeed8 100644
+index e6a23a6..8a7c6d6 100644
 --- a/configure.ac
 +++ b/configure.ac
-@@ -117,7 +117,6 @@ OVS_CHECK_XENSERVER_VERSION
+@@ -118,7 +118,6 @@ OVS_CHECK_XENSERVER_VERSION
  OVS_CHECK_GROFF
  OVS_CHECK_GNU_MAKE
  OVS_CHECK_TLS
@@ -11,7 +11,7 @@ index 8d47eb9..69eeed8 100644
  OVS_CHECK_ATOMIC_ALWAYS_LOCK_FREE(1)
  OVS_CHECK_ATOMIC_ALWAYS_LOCK_FREE(2)
 diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c
-index 9b2e74f..70126bb 100644
+index 712cb5a..e840f10 100644
 --- a/lib/netdev-linux.c
 +++ b/lib/netdev-linux.c
 @@ -40,7 +40,9 @@
@@ -25,15 +25,15 @@ index 9b2e74f..70126bb 100644
  #include <netinet/in.h>
  #include <poll.h>
 diff --git a/lib/ovs-atomic.h b/lib/ovs-atomic.h
-index 9ead907..86d3341 100644
+index 9ead907..0a131d7 100644
 --- a/lib/ovs-atomic.h
 +++ b/lib/ovs-atomic.h
-@@ -325,8 +325,6 @@
-         #include "ovs-atomic-clang.h"
-     #elif HAVE_STDATOMIC_H
-         #include "ovs-atomic-c11.h"
--    #elif __GNUC__ >= 4 && __GNUC_MINOR__ >= 7
--        #include "ovs-atomic-gcc4.7+.h"
-     #elif __GNUC__ && defined(__x86_64__)
-         #include "ovs-atomic-x86_64.h"
-     #elif __GNUC__ && defined(__i386__)
+@@ -318,7 +318,7 @@
+ #include "util.h"
+ 
+ #define IN_OVS_ATOMIC_H
+-    #if __CHECKER__
++    #if 1
+         /* sparse doesn't understand some GCC extensions we use. */
+         #include "ovs-atomic-pthreads.h"
+     #elif __has_extension(c_atomic)