_SC_THREAD_KEYS_MAX  518 ext/etc/constdefs.h #if !defined(_SC_THREAD_KEYS_MAX)
_SC_THREAD_KEYS_MAX  520 ext/etc/constdefs.h #  define _SC_THREAD_KEYS_MAX _SC_THREAD_KEYS_MAX
_SC_THREAD_KEYS_MAX 1250 ext/etc/constdefs.h #if defined(_SC_THREAD_KEYS_MAX)
_SC_THREAD_KEYS_MAX 1251 ext/etc/constdefs.h     rb_define_const(mod, "SC_THREAD_KEYS_MAX", INTEGER2NUM(_SC_THREAD_KEYS_MAX));