_POSIX_C_SOURCE    41 lib/fencing/st_rhcs.c #if _POSIX_C_SOURCE < 200809L && !(defined(O_SEARCH) || defined(O_PATH))
_POSIX_C_SOURCE    53 lib/fencing/st_rhcs.c #if _POSIX_C_SOURCE < 200809L && !(defined(O_SEARCH) || defined(O_PATH))
_POSIX_C_SOURCE    82 lib/fencing/st_rhcs.c #if _POSIX_C_SOURCE >= 200809L || defined(O_SEARCH) || defined(O_PATH)