On Dec 17, 2012, at 9:36, Tim Bunce <tim.bu...@pobox.com> wrote: > A separate install database for each install location seems like the only > workable approach.
It seems to me that the database indeed will have to be[1] "per library root" and the tools using the database will need to know to do lookups everywhere and merge the results. Ask [1] Where "will have to" means "to fit *my* universe".
