_SC_THREAD_THREADS_MAX  528 ext/etc/constdefs.h #if !defined(_SC_THREAD_THREADS_MAX)
_SC_THREAD_THREADS_MAX  530 ext/etc/constdefs.h #  define _SC_THREAD_THREADS_MAX _SC_THREAD_THREADS_MAX
_SC_THREAD_THREADS_MAX 1256 ext/etc/constdefs.h #if defined(_SC_THREAD_THREADS_MAX)
_SC_THREAD_THREADS_MAX 1257 ext/etc/constdefs.h     rb_define_const(mod, "SC_THREAD_THREADS_MAX", INTEGER2NUM(_SC_THREAD_THREADS_MAX));