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Re: Bug#677474: Substvars for Build-Depends in the .dsc file

Hi Bernd,

Am Donnerstag, den 14.06.2012, 10:32 +0200 schrieb Bernd Zeimetz:
> > I would like to see more flexibility in dpkg-source as to where the
> > effective build depends come from. My use case are (as you might guess)
> > Haskell packages. If you look at 
> > http://ftp.de.debian.org/debian/pool/main/h/haskell-yesod/haskell-yesod_1.0.1.6-1.dsc
> > you see it has a very long list of build dependencies. If you’d compare
> > that to
> > http://hackage.haskell.org/packages/archive/yesod/ 
> > you’d see that the process of creating the build dependencies is a
> > mostly mechanical process and doing that manually is a waste of human
> > developer time and a source for mistakes (which lead to FTBFSes and
> > hence more waste in buildd and buildd admin time).
> Other peopel solve this by having a debian/control.in file and having
> - a debian/control target in debian/rules
> - having the clean target depend on debian/control.
> I don't think that your case is special enough to add yet an extra
> option to dpkg-source. I have two packages where I'm changing much more
> than the build-dependencies automatically, for example.

I am aware of approaches using debian/control.in, but I was under the
impression that during the build, debian/control must not be changed and
hence this always requires manual interaction. If Updating
debian/control in the clean target, this is a large step in the right

The only problem I see with this is that if the build dependencies can
only be calculated after a full build, building source and binaries
requires two builds (and a third one if debuild -tc is used). (Maybe
less if debian/rules tracks the dependency of debian/control on *.cabal,
but I’m not sure how reliable this is in the when packing and unpacking
the sources.)


Joachim "nomeata" Breitner
Debian Developer
  nomeata@debian.org | ICQ# 74513189 | GPG-Keyid: 4743206C
  JID: nomeata@joachim-breitner.de | http://people.debian.org/~nomeata

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