diff options
Diffstat (limited to 'sysdeps/x86_64/atomic-machine.h')
| -rw-r--r-- | sysdeps/x86_64/atomic-machine.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/x86_64/atomic-machine.h b/sysdeps/x86_64/atomic-machine.h index 2e8a9aad04..c454734001 100644 --- a/sysdeps/x86_64/atomic-machine.h +++ b/sysdeps/x86_64/atomic-machine.h @@ -59,6 +59,7 @@ typedef uintmax_t uatomic_max_t; #define __HAVE_64B_ATOMICS 1 #define USE_ATOMIC_COMPILER_BUILTINS 1 +#define ATOMIC_EXCHANGE_USES_CAS 0 #define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ __sync_val_compare_and_swap (mem, oldval, newval) |