diff options
Diffstat (limited to 'Modules/_multiprocessing')
| -rw-r--r-- | Modules/_multiprocessing/semaphore.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Modules/_multiprocessing/semaphore.c b/Modules/_multiprocessing/semaphore.c index 8ea92f2b588..2c2b020e3bd 100644 --- a/Modules/_multiprocessing/semaphore.c +++ b/Modules/_multiprocessing/semaphore.c @@ -186,6 +186,13 @@ semlock_release(SemLockObject *self, PyObject *args) #define SEM_GETVALUE(sem, pval) sem_getvalue(sem, pval) #define SEM_UNLINK(name) sem_unlink(name) +/* OS X 10.4 defines SEM_FAILED as -1 instead of (sem_t *)-1; this gives + compiler warnings, and (potentially) undefined behaviour. */ +#ifdef __APPLE__ +# undef SEM_FAILED +# define SEM_FAILED ((sem_t *)-1) +#endif + #ifndef HAVE_SEM_UNLINK # define sem_unlink(name) 0 #endif |