_SC_SPAWN         243 ext/etc/constdefs.h #if !defined(_SC_SPAWN)
_SC_SPAWN         245 ext/etc/constdefs.h #  define _SC_SPAWN _SC_SPAWN
_SC_SPAWN        1085 ext/etc/constdefs.h #if defined(_SC_SPAWN)
_SC_SPAWN        1086 ext/etc/constdefs.h     rb_define_const(mod, "SC_SPAWN", INTEGER2NUM(_SC_SPAWN));