diff options
| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-05-26 10:46:57 +0200 |
|---|---|---|
| committer | Peter Seiderer <ps.report@gmx.net> | 2019-12-06 21:57:12 +0000 |
| commit | 8c511950395ce496028bbc5ba30d9b9632690db6 (patch) | |
| tree | ce56fb25a87e9bd03e05c5205c1787a22739b394 /xf86atomic.h | |
| parent | 8c1185d22cb5ea09dea063bd4a0a4f8b64487919 (diff) | |
xf86atomic: require CAS support in libatomic_ops
Since AO_compare_and_swap_full() is used by libdrm, AO_REQUIRE_CAS
must be defined before including <atomic_ops.h> so that we are sure
that CAS support will be provided. This is necessary to make sure that
the AO_compare_and_swap_full() function will be provided on all
architectures, including the ones that don't have built-in CAS support
such as SPARCv8.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Acked-by: Eric Engestrom <eric.engestrom@intel.com>
Diffstat (limited to 'xf86atomic.h')
| -rw-r--r-- | xf86atomic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xf86atomic.h b/xf86atomic.h index 2d733bd5..efa47a77 100644 --- a/xf86atomic.h +++ b/xf86atomic.h @@ -54,6 +54,7 @@ typedef struct { #endif #if HAVE_LIB_ATOMIC_OPS +#define AO_REQUIRE_CAS #include <atomic_ops.h> #define HAS_ATOMIC_OPS 1 |