On Fri, May 30, 2014 at 08:42:53PM +0200, Aurelien Jarno wrote: > On Wed, May 28, 2014 at 06:04:22PM +0200, Aurelien Jarno wrote: > > On Mon, May 19, 2014 at 12:09:28PM -0700, Jonathan Nieder wrote: > > > Aurelien Jarno wrote: > > > > > > > As a subsidiary question, do you know how to prevent libc6-amd64:i386 to > > > > be installed on a native amd64 system, but allow it on an i386 system, > > > > even with libc6:amd64 already installed? > > > > > > Use Conflicts against dpkg:amd64, maybe. :( > > > > I have been looking at this issue a bit more in details. libc biarch > > packages have never been designed with multiarch in mind, and thus they > > are not tagged as multiarch packages (implicit Multi-arch: none). However > > since multiarch, as the Multi-arch: field only concerns dependencies, and > > that such packages do not have Depends: beside the libc6 one, they are > > suddenly installable as foreign packages. > > > > That's why we suddenly have for example conflicts issue between > > libc6-dev-i386 and libc6-dev-mips64 (#702962) or libc6-dev-i386 and > > libc6-dev-mips64 (#702962), or why people are allowed to install > > libc6-amd64 on their amd64 system. > > > > I therefore wonder if we can add a new value for the Multi-arch: field > > like "forbidden", to prevent a foreign package to be installed on a > > system. > > > > Otherwise it looks like we'll have to go with a long list of > > Conflicts... > > Alternatively, we can create an empty package called for example > multiarch-no-foreign, which is arch:any and Multi-arch: none. That way > all packages which should not be installed as foreign architecture can > depend on this one. > > What do you think? >
Well it won't work, because installing libc6-amd64:i386 will pull multiarch-no-foreign:i386, and thus the whole set will be installable. We definitely do want to forbid things like installing gdb64:i386 or strace64:i386 on an amd64 system, or more horrible things like trying to install libc6-dev-x32:am64 on an i386 system. -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurel...@aurel32.net http://www.aurel32.net -- To UNSUBSCRIBE, email to debian-dpkg-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20140602180336.ga11...@hall.aurel32.net
