_SC_PRIORITIZED_IO  193 ext/etc/constdefs.h #if !defined(_SC_PRIORITIZED_IO)
_SC_PRIORITIZED_IO  195 ext/etc/constdefs.h #  define _SC_PRIORITIZED_IO _SC_PRIORITIZED_IO
_SC_PRIORITIZED_IO 1055 ext/etc/constdefs.h #if defined(_SC_PRIORITIZED_IO)
_SC_PRIORITIZED_IO 1056 ext/etc/constdefs.h     rb_define_const(mod, "SC_PRIORITIZED_IO", INTEGER2NUM(_SC_PRIORITIZED_IO));