for (i = 0; i < n_opts; i++) {
        reduced_flags [flags[i]] = 1
}

reduced_n_opts = length(reduced_flags)

print "#define OPT_STOR " reduced_n_opts
print "#define NOPT_S " n_opts

for (reduced_flag in reduced_flags) {

        name = var_name(reduced_flag)
        if (name == "")
                continue;

        print "extern " var_type(reduced_flag) name ";"
}
print ""