_SC_ARG_MAX 18 ext/etc/constdefs.h #if !defined(_SC_ARG_MAX) _SC_ARG_MAX 20 ext/etc/constdefs.h # define _SC_ARG_MAX _SC_ARG_MAX _SC_ARG_MAX 950 ext/etc/constdefs.h #if defined(_SC_ARG_MAX) _SC_ARG_MAX 951 ext/etc/constdefs.h rb_define_const(mod, "SC_ARG_MAX", INTEGER2NUM(_SC_ARG_MAX));