Quoting Johannes Schauer (2015-05-25 13:39:13) > Quoting Gianfranco Costamagna (2015-05-25 09:22:57) >> Problem: I have a package that might depend on a libfoo-dev library. >> >> "might" because it tries to detect it at configure time, and if the >> libfoo is found some features are enabled, otherwise the features are >> disabled. >> >> Since the libfoo isn't build on every architecture, I would like to >> have some field in my control file, like "try to install it, if not >> found just discard it", instead of keeping track of every >> architecture built or not at each upload and enable when a new >> architecture is successfully built. > > This thread was also asking for a method to overcome the problem of > keeping an architecture list up to date: > http://lists.debian.org/20141211180858.gs2...@bivouac.eciton.net > > One solution was proposed by Helmut: > http://lists.debian.org/20141217084500.ga16...@alf.mars > > In your case this would mean that the source package building > libfoo-dev would modify the binary package libfoo-dev to Provides: > optional-libfoo-dev and additionally build a binary package called > no-libfoo-dev on all architectures where libfoo-dev is *not* built > which also Provides: optional-libfoo-dev. Lastly, let your source > package build depend on optional-libfoo-dev. > > This solution might have a slight advantage over the one one proposed > by Jakub by explicitly listing the package no-libfoo-dev in the > Build-Environment field in the .buildinfo file on architectures where > your package is built without libfoo-dev instead of just leaving it > out.
Both above approaches are suitable only when in control of the dependent package as well. What I do is add a custom build target that rewrites debian/control based on rmadison query resolving current archs for a given package. See e.g. uwsgi source package and its script debian/pkgarchs.sh. NB! Must be a custom target: control file must be deterministic to comply with Debian Policy. - 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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