Translations:Ebuild repository/17/en

Each overlay has its unique priority. This makes sure that in the case of a specific version being found in several overlays, the resolution is unambiguous. Ebuilds from overlays with higher priorities take precedence over ebuilds from overlays with lower priorities.

The list of overlays with their priorities can be obtained through the output of the following command

Unless the  variable has been modified as described below, the default gentoo portage tree will have a priority of -1000. That means that all other overlays take precedence. That is the default behavior, because overlays are designed to "lie over/on top" of the portage tree.