sem_trywait 127 maint/gnulib/tests/atomic-int-gnulib.h if (sem_trywait (atomic_int_semaphore (ai)) == 0) sem_trywait 127 maint/gnulib/tests/atomic-int-isoc.h if (sem_trywait (atomic_int_semaphore (ai)) == 0) sem_trywait 127 maint/gnulib/tests/atomic-int-posix.h if (sem_trywait (atomic_int_semaphore (ai)) == 0)