On Mon, 11 May 2020 at 12:34, Adrian Bunk <b...@debian.org> wrote: > > On Sun, May 10, 2020 at 03:40:43PM +0200, László Böszörményi wrote: > >.... > > Level 1.5 is needed for Boost packages to be binNMUed: > > Both boost1.67 and boost1.71 build correctly. > >... > > Changing the icu version changes the libboost_regex ABI. > > The libboost-regex*-icu* provides untangle icu transitions from boost > transitions, but reverse dependencies of libboost-regex1.67.0 in buster > depend on libboost-regex1.67.0 not libboost-regex1.67.0-icu63. >
If icu in unstable could add Breaks: libbost-regex1.67-0 (<< 1.67.0-141) that should be sufficient to ensure upgrades happen the right way around from buster. Alternatively, we should work on removing boost1.67 in unstable & testing. It should not ship. boost-regex*-icu* otherwise should be binNMU safe in testing/unstable otherwise. > This means one boost transition is needed before the untangling > is finished, and this has to happen before this icu transition. > boost1.67 should never be rebuilt with a more recent icu. > > Additionally, everything depending on libboost-regex1.67.0-icu63 > or libboost-regex1.71.0-icu63 is also part of this icu transition. yes -- Regards, Dimitri.