Am Donnerstag 22 Januar 2015, 16:50:45 schrieb Sam Bishop: > On 22 January 2015 at 01:54, Andreas K. Huettel <dilfri...@gentoo.org> wrote: > > Am Mittwoch 21 Januar 2015, 20:36:55 schrieb Sam Bishop: > >> So I've been thinking crazy thoughts. > >> > >> Theoretically it can't be that hard to do a complete package binhost for > >> gentoo. > >> > >> To be clear, when i say complete, Im referring to building, all > >> versions of all ebuilds marked stable or unstable on amd64, with every > >> combination of use flags. > > > > Not enough. You will also have to build against every combination of > > dependency subslots. > > > > e.g., different poppler, boost, icu, perl and many more versions... > > > > Which makes the task near impossible. > > Not impossible, just more computationally demanding and requiring more > storage.
Well, exponential increase is exponential increase. * A libreoffice binary package with debug information has roughly 800Mbyte size * 2 libreoffice versions in the tree * libreoffice links against poppler, icu, boost (among other things) * poppler: 5 subslots, icu (soon) 3 subslots, boost 5 subslots in tree -> 75 combinations * libreoffice has 22 useflags and 4 extensions, plus three supported python variants -> 29 switches * REQUIRED_USE limits your combinations, let's conservatively guess 25 independent switches -> 2^25=33554432 use combinations Which ends up with roughly 2 Exabyte (10^9 GByte) of storage for all packages. -- Andreas K. Huettel Gentoo Linux developer kde, council
