Hi, (adding debian-boot@, debian-release@ to Cc) Tobias Frost <tobi@debian.org> (2016-01-04): > Dear debian-devel, > > we are currently planning to start the transition of libpng. > The transition bug can be found here: > https://bugs.debian.org/650601. > > Out of the 463 rebuilt packages 117 FTBFS with the new libpng, however > not every failure can be attributed to the library. > > Logs from the rebuild can be found here: http://libpng.sviech.de, as > well as a scratchpad with a short analysis: > https://titanpad.com/libpng16-transistion > > Out of those results, mass bug filings will be conducted: > - Packages that fail to build with the new libpng > - Packages that B-D on ancient libpng3-dev, libpng12-0-dev and (the > soon-obsolete) libpng12-dev, asking to update their B-Ds to libpng-dev > > There are already bugs filed earlier against certain packages: > https://udd.debian.org/cgi-bin/bts-usertags.cgi?tag=libpng15-transition > &user=libpng%40packages.debian.org > Those bugs will be updated with the new usertag to avoid filing > duplicate bugs. > > The bugs will be non-RC for the time being, when the transition starts > the severity will be raised appropriately. > > The current plan is drafted as: > > 0. Assess situation (rebuild) -- done > 1. Announce MBF (this mail) and execute it. > (1a. I'll also try to patches and attach them to the bugs) > 2. Nobuhiro to upload to libpng1.6 to unstable. (after "GO" from the > release team) > 3. Raise severity to RC > 4. binNMU / NMUing packgages > 5. fix remaining issues to finish transition > 6. Remove libpng12 from unstable Please make sure to coordinate this transition's start with the d-i team through debian-boot@ since this transition will likely impact d-i's releasability through libpng's udeb (mostly through libcairo, libfreetype). Speaking of this particular udeb, I've just spotted libpng16-16-udeb has a Conflicts against libpng12-0-udeb. I'm not sure why, and the changelog doesn't seem to explain either. libpng16-16 and libpng12-0 seems to be co-installable, so I'm not sure why their respective udebs shouldn't be. Mraw, KiBi.
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