http://www.contrib.andrew.cmu.edu/~tmartin/senken/ is no longer available.
On that 404 page:
If you're getting this message for a user's home page, e.g. http://www.contrib.andrew.cmu.edu/~someuser, it probably means that that user's Andrew account and web pages no longer exist.
yep, it's gone.
Well, what to do about it?
Leave a 404 page in the ebuild?
Remove the package?
it's fine how it is. If you have an alternate homepage, feel free to reopen, otherwise, just leave it.
We leave it as-is.
*** Bug 177734 has been marked as a duplicate of this bug. ***