On 06/05/2012 06:31 AM, Pacho Ramos wrote: > El mar, 05-06-2012 a las 08:44 -0400, Aaron W. Swenson escribió: >> The ideal solution is for the Ebuild to instruct the PMS to rebuild >> the dependent packages. >> >> We can have a variable called REBUILD. All packages that would need to >> be rebuilt can be listed in it. Only those packages that are installed >> would be built. The actual list of the packages to be rebuilt would be >> determined at dependency checking time. That way, the user can approve >> the rebuild of the packages. > > We all know what would be the "ideal solution", the problem is how to > implement it (and how many years we need to wait to get it working).
This REBUILD variable is the first idea that pops into the head of anyone who's never worked on a dependency resolver before. It's backwards because it requires a package to have knowledge of *all* of its reverse dependencies, and it should not need to know about *any* of them. The "SLOT operator" dependencies that Ciaran has been advocating are very close to a good solution. However, if we want it to work with unslotted packages, then we need to introduce a separate ABI_SLOT variable as discussed here: https://bugs.gentoo.org/show_bug.cgi?id=192319#c18 It's really no more difficult to do than "SLOT operator" dependencies, it's more flexible, and we can do it in EAPI 5. -- Thanks, Zac
