if use kerberos ; then
                if has_version app-crypt/heimdal ; then
                        myconf="${myconf} --with-krb5=/usr/ --with-krb4=no --with-gssapi=/usr"
                elif has_version app-crypt/mit-krb5 && built_with_use app-crypt/mit-krb5 krb4 ; then
                        myconf = "${myconf} --with-krb5=/usr/ --with-krb4=/usr/ --with-gssapi=/usr"
                elif has_version app-crypt/mit-krb5 && ! built_with_use app-crypt/mit-krb5 krb4 ; then
                        myconf = "${myconf} --with-krb5=/usr/ --with-krb4=no --with-gssapi=/usr"
                fi
fi