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authorDavid Kalnischkies <david@kalnischkies.de>2015-04-12 19:16:01 +0200
committerDavid Kalnischkies <david@kalnischkies.de>2015-04-12 21:44:27 +0200
commit596ec43ce34421080a58b28299c1ed9cb0dbaa25 (patch)
tree89297d3bc3942ee6560478dc9bab5e69aa4e85e5 /doc/apt.conf.5.xml
parentd5cf8851753dde4f45bfd3b48fcdf34247a8752a (diff)
parse specific-arch dependencies correctly on single-arch systems
On single-arch the parsing was creating groupnames like 'apt:amd64' even through it should be 'apt' and a package in it belonging to architecture amd64. The result for foreign architectures was as expected: The dependency isn't satisfiable, but for native architecture it means the wrong package (ala apt:amd64:amd64) is linked so this is also not satisfiable, which is very much not expected. No longer excluding single-arch from this codepath allows the generation of the correct links, which still link to non-exisiting packages for foreign dependencies, but natives link to the expected native package just as if no architecture was given. For negative arch-specific dependencies ala Conflicts this matter was worse as apt will believe there isn't a Conflict to resolve, tricking it into calculating a solution dpkg will refuse. Architecture specific positive dependencies are rare in jessie – the only one in amd64 main is foreign –, negative dependencies do not even exist. Neither class has a native specimen, so no package in jessie is effected by this bug, but it might be interesting for stretch upgrades. This also means the regression potential is very low. Closes: 777760
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