On Wed, Jul 10, 2013 at 2:32 PM, Vincent Lefevre <vinc...@vinc17.net> wrote: > # apt-get install clang > The following packages have unmet dependencies: > clang : Depends: clang-3.2 (>= 3.2-1~) but it is not going to be installed > E: Unable to correct problems, you have held broken packages. > > This is due to:
clang is no longer in unstable (the package – and its not the reason, but I wouldn't expect it to work based on that) > Even though this appears to be a downgrade of libclang-common-dev, > the installation should obviously be forced in such a case. Downgrades are not supported in Debian, so its even more obvious that APT shouldn't actively trying to destroy your system without heavy force applied as old packages might be unable to read their new conf file formats, irreversible maintainer-script actions (which the maintainer has to code of course - at best bug-free as it is already done for the more common "upgrade" scenario), … Given that you hit this problem only if a maintainer hasn't cared too much for the upgradeability of the package, I wouldn't have too much hope that the maintainer has cared all that much for downgrades … Beside: Detecting this would be pretty hard and full of cornercases (especially as yours is already one as it crosses source-package boundaries): It wouldn't be that great if a package is removed from testing and the package gets therefore downgraded to a version from stable for example… So, as this is (at least not without a debian-policy enforced MUST for the support of downgrades in packages) never going to happen: Obviously Closing. Best regards David Kalnischkies -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
