_SC_MEMLOCK       168 ext/etc/constdefs.h #if !defined(_SC_MEMLOCK)
_SC_MEMLOCK       170 ext/etc/constdefs.h #  define _SC_MEMLOCK _SC_MEMLOCK
_SC_MEMLOCK      1040 ext/etc/constdefs.h #if defined(_SC_MEMLOCK)
_SC_MEMLOCK      1041 ext/etc/constdefs.h     rb_define_const(mod, "SC_MEMLOCK", INTEGER2NUM(_SC_MEMLOCK));