_SC_SPIN_LOCKS    248 ext/etc/constdefs.h #if !defined(_SC_SPIN_LOCKS)
_SC_SPIN_LOCKS    250 ext/etc/constdefs.h #  define _SC_SPIN_LOCKS _SC_SPIN_LOCKS
_SC_SPIN_LOCKS   1088 ext/etc/constdefs.h #if defined(_SC_SPIN_LOCKS)
_SC_SPIN_LOCKS   1089 ext/etc/constdefs.h     rb_define_const(mod, "SC_SPIN_LOCKS", INTEGER2NUM(_SC_SPIN_LOCKS));