void pkg_vec_free(pkg_vec_t *vec);
void marry_two_packages(pkg_t * newpkg, pkg_t * oldpkg);
-void pkg_vec_add(pkg_vec_t *vec, pkg_t *pkg);
/* pkg_vec_insert_merge: might munge pkg.
* returns the pkg that is in the pkg graph */
pkg_t *pkg_vec_insert_merge(pkg_vec_t *vec, pkg_t *pkg, int set_status, opkg_conf_t *conf);