_SC_ATEXIT_MAX     23 ext/etc/constdefs.h #if !defined(_SC_ATEXIT_MAX)
_SC_ATEXIT_MAX     25 ext/etc/constdefs.h #  define _SC_ATEXIT_MAX _SC_ATEXIT_MAX
_SC_ATEXIT_MAX    953 ext/etc/constdefs.h #if defined(_SC_ATEXIT_MAX)
_SC_ATEXIT_MAX    954 ext/etc/constdefs.h     rb_define_const(mod, "SC_ATEXIT_MAX", INTEGER2NUM(_SC_ATEXIT_MAX));