diff options
| -rw-r--r-- | src/atomic_ops/sysdeps/gcc/x86.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/atomic_ops/sysdeps/gcc/x86.h b/src/atomic_ops/sysdeps/gcc/x86.h index 8d268b6..90b64bc 100644 --- a/src/atomic_ops/sysdeps/gcc/x86.h +++ b/src/atomic_ops/sysdeps/gcc/x86.h @@ -51,6 +51,21 @@ # define AO_GCC_FORCE_HAVE_CAS # endif +# if !defined(__x86_64__) && defined(__APPLE__) && defined(__MACH__) + /* OS X 10.8 lacks __atomic_load/store symbols for arch i386 (even */ + /* with non-Apple clang). */ +# ifndef MAC_OS_X_VERSION_MIN_REQUIRED + /* Include this header just to import the version macro. */ +# include <AvailabilityMacros.h> +# endif +# if MAC_OS_X_VERSION_MIN_REQUIRED < 1090 /* MAC_OS_X_VERSION_10_9 */ +# define AO_SKIPATOMIC_double_load +# define AO_SKIPATOMIC_double_load_acquire +# define AO_SKIPATOMIC_double_store +# define AO_SKIPATOMIC_double_store_release +# endif +# endif + #else /* AO_DISABLE_GCC_ATOMICS */ /* The following really assume we have a 486 or better. Unfortunately */ |