On my Debian "jessie" system, <stdatomic.h> provided by GCC 4.9 is busted
when Clang 3.5 tries to use it. Even a trivial program like this:
#include <stdatomic.h>
void
foo(void)
{
_Atomic(int) x;
atomic_fetch_add(&x, 1);
}
yields:
atomic.c:7:5: error: address argument to atomic operation must be a
pointer to integer or pointer ('_Atomic(int) *' invalid)
The Clang-specific version of ovs-atomic.h stills works, though, so this
commit works around the problem.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
#if __CHECKER__
/* sparse doesn't understand some GCC extensions we use. */
#include "ovs-atomic-pthreads.h"
- #elif HAVE_STDATOMIC_H
- #include "ovs-atomic-c11.h"
#elif __has_extension(c_atomic)
#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__)