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| author | Ivan Maidanski <ivmai@mail.ru> | 2017-01-12 23:36:18 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2017-01-12 23:49:04 +0300 |
| commit | f98d476ffc0a8b76fdf9c7ae2d4ea758f14356ca (patch) | |
| tree | 68445646c5c578bf2675e9b81cf2e2e09500df95 | |
| parent | 729d6b7965cf0b419c1fb65ac99bc740ddeee56b (diff) | |
| download | libatomic_ops-f98d476ffc0a8b76fdf9c7ae2d4ea758f14356ca.tar.gz | |
Fix 'atomic_load/store symbols undefined' error on OS X 10.8 i386
Issue #23 (libatomic_ops).
* src/atomic_ops/sysdeps/gcc/x86.h [AO_GCC_ATOMIC_TEST_AND_SET
&& !__x86_64__ && __APPLE__ && __MACH__]: Include AvailabilityMacros.h
unless MAC_OS_X_VERSION_MIN_REQUIRED already defined.
* src/atomic_ops/sysdeps/gcc/x86.h [AO_GCC_ATOMIC_TEST_AND_SET
&& !__x86_64__ && __APPLE__ && __MACH__
&& MAC_OS_X_VERSION_MIN_REQUIRED < 1090] (AO_SKIPATOMIC_double_load,
AO_SKIPATOMIC_double_load_acquire, AO_SKIPATOMIC_double_store,
AO_SKIPATOMIC_double_store_release): Define.
| -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 */ |