-/* 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);
-/* this one never munges pkg */
-void pkg_vec_insert(pkg_vec_t *vec, const pkg_t *pkg);
-int pkg_vec_contains(pkg_vec_t *vec, pkg_t *apkg);
+typedef int (*compare_fcn_t) (const void *, const void *);
+void pkg_vec_sort(pkg_vec_t * vec, compare_fcn_t compar);