Quoting Niko Tyni (2014-06-28 09:03:08) > This package fails to build from source with Perl 5.20 (currently in > experimental) and sbuild: > > The following packages have unmet dependencies: > sbuild-build-depends-libio-callback-perl-dummy : Depends: perl (< 5.19) > but 5.20.0-1 is to be installed > E: Unable to correct problems, you have held broken packages. > > The problem is this dependency: > > Build-Depends: perl (<< 5.19) | libmodule-build-perl (>= 0.40), > > Perhaps something like this (untested) could work? > > Build-Depends: perl (>= 5.17.1~) | libmodule-build-perl (>= 0.40), > libmodule-build-perl > > (The unversioned dependency would guarantee either a perl version with > the bundled M::B, or a separate package. The versioned alternative > would guarantee that the M::B version is new enough.) > > I suppose we'll have to teach lintian new tricks too at some point...
Relying on a (build-)dependency being resolved by a virtual package is not allowed by Policy, with the reasoning that it causes non-deterministic behaviour. libmodule-build-perl exists as a package, so simply favoring that over the perl-provided version should work _and_ be deterministic _and_ work on more relaxed environments permitting undetermnistic fallbacks (read: backporting with pbuilder or variants like cowbuilder): Build-Depends: libmodule-build-perl (>= 0.40) | perl (<< 5.19) - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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