When the ${PORTDIR} (or some overlay directory) path is a symbolic link, its canonicalized path is of course different. However, portage-2.2_rc1 seems to canonicalize this path at the wrong place: It shows the warning message "..." is missing repo_name. Indeed, inserting some debugging output in the code, I found that the reason is that the path associated to the "gentoo" repo_name is its canonicalized path, and so it is of course not found in the list of paths consisting of ${PORTDIR} and overlay directories, and so this name is not removed from the list for which *no* warnings should be printed. At this place, this is of course not a serious problem, but I am afraid that this missing ${PORTDIR} <-> "gentoo" association might also cause problems at some other places...
duplicate of bug #228595 ?
Yes. Sorry the noise. *** This bug has been marked as a duplicate of bug 228595 ***