Source: ball Version: 1.5.0+git20180813.37fc53c-6 Severity: minor src:ball has a lot of dependencies. I looked into them, because it cannot be cross built. While looking into this, I found a number of dependencies that are unused (even though dropping them likely doesn't help cross building). Given that ball is normally reproducible, I compared the resulting artifacts of a regular full build with a nocheck build that has the following dependencies moved from Build-Depends to Build-Conflicts: * qttools5-dev * libfftw3-dev * libgsl0-dev * libxrender-dev * libboost-math-dev * libboost-system-dev * libasio-dev * libboost-regex-dev * libxmu-dev
That's quite a pile of dependencies. They can show up here for a number of reasons that are slightly difficult to tell apart: * Really unused. In such cases, it is best to delete them. * Only used for unit tests (which are disabled by DEB_BUILD_OPTIONS=nocheck in the second build). In such cases, they should be annotated <!nocheck>. * In rare cases a dependency is vendored and a system copy is used when available. In such cases, it is best to keep the dependency. Optionally, steps can be taken to avoid accidental uses of the vendor copy. For example, the vendor copy can be deleted or sometimes a flag can be passed to the build system. When dropping any other dependency, either the build fails or the output artifact differs. Please reduce your build dependencies either by dropping dependencies mentioned above or annotating them <!nocheck>. Helmut
