On Thu, Sep 29, 2016 at 10:22:52PM +0200, ban...@openmailbox.org wrote: > Dear maintainer, I am trying to install codecrypt from a pinned sid repo > on Jessie.
You are mixing the stable and unstable releases. Do not do this. It will break things. See https://wiki.debian.org/DontBreakDebian. > After including other dependency packages as well, apt has run into a > unresolvable dependency requirement. libstdc++6 insists on libkolabxml1 > 1.1.0-3 while the newest version available in sid is 1.0.2-2 The problem is that codecrypt and other packages on sid use a newer libstdc++6 version. Packages on jessie use an older libstdc++6 version. It's warning you that if you upgrade libstdc++6, you will break every c++ program you have installed. > AFAICT this dependency conflict is a blocker even if the user is running > unstable. The dependencies worked fine for me when I installed it on a fully sid system. If you want it to work on jessie, it needs to be recompiled for jessie. The build-depends don't look bad so you shouldn't run into problems making a backport.