SIRO_NOHDR        430 src/libsir/src/sirfilecache.c         if (!_sir_bittest(sf->opts, SIRO_NOHDR) && !_sirfile_writeheader(sf, SIR_FHBEGIN))
SIRO_NOHDR        156 src/libsir/src/sirhelpers.c          _sir_bittest(opts, SIRO_NOHDR))           &&
SIRO_NOHDR        157 src/libsir/src/sirhelpers.c          ((opts & ~(SIRO_MSGONLY | SIRO_NOHDR)) == 0U)))