if (str_cmp ("builtin", Editor) != 0 &&
(op == OP_COMPOSE_EDIT_HEADERS ||
(op == OP_COMPOSE_EDIT_MESSAGE && option (OPTEDITHDRS)))) {
- char *tag = NULL, *err = NULL;
+ const char *tag = NULL, *err = NULL;
mutt_env_to_local (msg->env);
mutt_edit_headers (NONULL (Editor), msg->content->filename, msg,