____buf[sizeof(____buf) - 1] = 0; \
ust_patient_write(STDERR_FILENO, ____buf, strlen(____buf)); \
errno = ____saved_errno; /* signal-safety */ \
____buf[sizeof(____buf) - 1] = 0; \
ust_patient_write(STDERR_FILENO, ____buf, strlen(____buf)); \
errno = ____saved_errno; /* signal-safety */ \