PERLVAR(Tregendp, I32 *) /* Ditto for endp. */
PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */
PERLVAR(Tregtill, char *) /* How far we are required to go. */
-PERLVAR(Tregprev, char) /* char before regbol, \n if none */
+PERLVAR(Tregcompat1, char) /* used to be regprev1 */
PERLVAR(Treg_start_tmp, char **) /* from regexec.c */
PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */
PERLVAR(Tregdata, struct reg_data *)