> This is in fact a bug in apt as well. A fresh install of 64-bit raring will > try to pull in gnome-exe-thumbnailer:i386, which in turn will ask for > icoutils:i386, which will then conflict: > libunity-webapps0 : Depends: unity-webapps-service but it is not going to be > installed > > Rather than give up and declare it hopeless here, apt should instead just not > try to install the merely recommended package gnome-exe-thumbnailer:i386.
I'm not so sure this is sensible, as relaxing the behaviour of APT ::Install-Recommends will lead to unpredictable results, especially in the presence of other transient packaging or non-availability errors. The expectation when installing a package is that any recommends are also installed. If a recommended package is not available at the time and simply ignored, it will not be handled subsequently by upgrades to the base package. This is important behaviour to preserve the users ability to manually override particular recommends. To quote debian-policy: > Recommends > This declares a strong, but not absolute, dependency. > > The Recommends field should list packages that would be found > together with this one in all but unusual installations. If a package recommends another that is either unavailable or uninstallable, that is not merely an unusual situation, it is *broken*. In my understanding, the treatment of recommends as dependencies *while installing a package* should not be changed unless manually overridden (by, say, ‘apt-get install foo bar-’). If a package recommends another, it is declaring a relationship that is expected to hold by default and care must be taken to ensure that recommended packages are co- installable (i.e. m-a foreign down as far as required). I would consider this issue purely packaging and mark as invalid for apt, though perhaps some apt developers have a comment. Regards -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xdg-utils in Ubuntu. https://bugs.launchpad.net/bugs/1123710 Title: wine1.4:i386 not installable on raring amd64 Status in “apt” package in Ubuntu: New Status in “gnome-exe-thumbnailer” package in Ubuntu: Fix Released Status in “ttf-droid” package in Ubuntu: Fix Committed Status in “ttf-liberation” package in Ubuntu: In Progress Status in “ttf-umefont” package in Ubuntu: Fix Committed Status in “ttf-unfonts-core” package in Ubuntu: In Progress Status in “ttf-wqy-microhei” package in Ubuntu: In Progress Status in “wine1.4” package in Ubuntu: Invalid Status in “winetricks” package in Ubuntu: Fix Released Status in “xdg-utils” package in Ubuntu: In Progress Status in Debian GNU/Linux: Fix Released Bug description: If a user wants 32-bit only wine, a reasonable way to get it would be to install wine1.4:i386. However, this is not possible on amd64. Currently apt spews this complaint: wine1.4:i386 : Depends: wine1.4-i386:i386 (= 1.4.1-0ubuntu4) Recommends: gnome-exe-thumbnailer:i386 but it is not installable or kde-runtime:i386 but it is not going to be installed Recommends: ttf-droid:i386 but it is not installable Recommends: ttf-liberation:i386 but it is not installable Recommends: ttf-umefont:i386 but it is not installable Recommends: ttf-unfonts-core:i386 but it is not installable Recommends: ttf-wqy-microhei:i386 but it is not installable Recommends: winetricks:i386 but it is not going to be installed Recommends: xdg-utils:i386 but it is not installable gnome-exe-thumbnailer, xdg-utils, and the fonts are arch: all and should be marked multiarch:foreign to indicate that it is ok to install them for the nonnative wine1.4 (they are cross-arch shell scripts). winetricks is currently arch i386 and amd64 and should probably be marked arch: all (especially for upcoming arm wine). apt will then freak out about conflicts and give up. apt-get --no- install-recommends wine1.4:i386, however, will actually complete. I'm not sure this is correct behavior for apt, as in principle it should be able to figure out that it can succeed with the command by omitting recommended packages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1123710/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
