On 30/10/17 15:46, Celejar wrote: > On Sun, 29 Oct 2017 08:28:46 -0400 > The Wanderer <wanderer@fastmail.fm> wrote: > >> On 2017-10-29 at 07:49, Jörg-Volker Peetz wrote: >> >>> Celejar wrote on 10/24/17 15:09: >>> >>>> On Tue, 24 Oct 2017 08:52:46 +0200 >>>> Jörg-Volker Peetz <jvpeetz@web.de> wrote: >>>> >>>>> I forgot that you showed the dependency on cups-filters in your original mail. >>>>> On testing cups-filters 1.17.9-1 does not depend on imagemagick, it only >>>>> recommends it. And I use APT::Install-Recommends "false"; in /etc/apt/apt.conf. >>>>> Therefore, on this system imagemagick could be removed. >>>> >>>> Interesting, thanks. So they changed the dependency from 'depends' to >>>> 'recommends', but they're still 'recommending' a dummy package. >>> >>> Taking another look at package imagemagick-6.q16 (version 8:6.9.7.4+dfsg-16) it >>> states that it provides imagemagick. Therefore, I don't understand what's going >>> on on your system and there's nothing wrong with package cups-filters, I think. >> >> My guess involves vague memories of there being an issue with versioned >> Provides: - although I thought that was more "you can't Provides: a >> specific version", not "a versioned Depends: won't be satisfied by a >> Provides: from a package with a suitable version number". > > I don't understand this stuff well enough to add anything to the > conversation. All I know is that I still can't remove imagemagick > despite the fact that imagemagick-6.q16 "Provides:" imagemagick. > > Celejar > imagemagick-6.q16 Provides: imagemagick, but not a specific version cups-filters Depends: imagemagick (>= 6.4~) The real imagemagick package is at 8:6.9.7.4+dfsg-11+deb9u1 (on my machine anyway), which satisifies the cups-filters dependency. The system doesn't know whether the version of imagemagick Provided by imagemagick-6.q16 is new enough, so you still need the real package. Richard
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