DF404.0 {
    regcomp;
    regcomp_l;
    regerror;
    regexec;
    regfree;
    regncomp;
    regncomp_l;
    regnexec;
    regwcomp;
    regwcomp_l;
    regwexec;
    regwncomp;
    regwncomp_l;
    regwnexec;
    tre_version;
    tre_config;
    tre_have_backrefs;
    tre_have_approx;
};