diff options
| -rw-r--r-- | src/atomic_ops/sysdeps/gcc/x86.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/atomic_ops/sysdeps/gcc/x86.h b/src/atomic_ops/sysdeps/gcc/x86.h index ded34ac..4f81773 100644 --- a/src/atomic_ops/sysdeps/gcc/x86.h +++ b/src/atomic_ops/sysdeps/gcc/x86.h @@ -43,6 +43,9 @@ /* As of Apple clang-600 (based on LLVM 3.5svn), it has some bug in */ /* double-wide CAS implementation for x64 target. */ # define AO_SKIPATOMIC_double_compare_and_swap_ANY + /* OS X 10.7 clang-425/x64 lacks __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n */ + /* predefined macro (unlike e.g. OS X 10.11 clang-703). */ +# define AO_GCC_FORCE_HAVE_CAS # endif #else /* AO_DISABLE_GCC_ATOMICS */ |