Hopefully not a duplicate, I did not see anything like it when I searched. I want to prevent this; The following packages are causing rebuilds: (dev-lang/perl-5.20.2::gentoo, ebuild scheduled for merge) causes rebuilds for: (dev-perl/Locale-gettext-1.50.0-r1::gentoo, binary scheduled for merge) (perl-core/Data-Dumper-2.154.0::gentoo, binary scheduled for merge) (dev-perl/XML-Parser-2.410.0-r2::gentoo, binary scheduled for merge) There is no need for perl to be rebuilt. I am trying to update a system with pre-built binaries. All perl modules were already built against that version of perl that I am merging. Thus the perl binaries were already merged using that version of perl. Portage/emerge thinks it needs to rebuild perl, when it does not. So instead of installing the pre-made perl binary. It is re-compiling perl needlessly. Which is what I am reporting, and would like to see the behavior modified. Thankfully it just seems to be perl, but I assume this same thing would happen for any package really. If dependencies caused rebuilds, but the deps were already built against the version they would rebuild against.
They are not needless tho, anything that requires perl has to be rebuilt after a perl upgrade. If you are using binary packages then the binhost will have to rebuild them and the other machines can just re-install the packages.
The binhost had rebuilt them already that is my point. Its trying to be rebuilt again, when it was already been re-built against the version perl its being re-built again against for the 2nd time on the binclient. The binaries were prepped on the binhost, thus just need to be installed on the binclient, no deps need to be rebuild as that was already done on the binhost.
(In reply to William L. Thomson Jr. from comment #0) > The following packages are causing rebuilds: > > (dev-lang/perl-5.20.2::gentoo, ebuild scheduled for merge) causes rebuilds > for: > (dev-perl/Locale-gettext-1.50.0-r1::gentoo, binary scheduled for merge) > (perl-core/Data-Dumper-2.154.0::gentoo, binary scheduled for merge) > (dev-perl/XML-Parser-2.410.0-r2::gentoo, binary scheduled for merge) > > There is no need for perl to be rebuilt. You can try using --binpkg-respect-use=n and --binpkg-changed-deps=n. That will make it re-use binary packages whenever possible. Alternatively, the --usepkgonly/--getbinpkgonly options will give similar results.
Ok thanks, will try those next I run into this. All systems were updated so I do not have any to replicate this with atm.
I think this might be a false report, rebuilds are triggered but uses binary packages it does not rebuild.
