_SC_REALTIME_SIGNALS  213 ext/etc/constdefs.h #if !defined(_SC_REALTIME_SIGNALS)
_SC_REALTIME_SIGNALS  215 ext/etc/constdefs.h #  define _SC_REALTIME_SIGNALS _SC_REALTIME_SIGNALS
_SC_REALTIME_SIGNALS 1067 ext/etc/constdefs.h #if defined(_SC_REALTIME_SIGNALS)
_SC_REALTIME_SIGNALS 1068 ext/etc/constdefs.h     rb_define_const(mod, "SC_REALTIME_SIGNALS", INTEGER2NUM(_SC_REALTIME_SIGNALS));