_SC_MQ_OPEN_MAX   108 ext/etc/constdefs.h #if !defined(_SC_MQ_OPEN_MAX)
_SC_MQ_OPEN_MAX   110 ext/etc/constdefs.h #  define _SC_MQ_OPEN_MAX _SC_MQ_OPEN_MAX
_SC_MQ_OPEN_MAX  1004 ext/etc/constdefs.h #if defined(_SC_MQ_OPEN_MAX)
_SC_MQ_OPEN_MAX  1005 ext/etc/constdefs.h     rb_define_const(mod, "SC_MQ_OPEN_MAX", INTEGER2NUM(_SC_MQ_OPEN_MAX));