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Re: cabal-install dependency on libghc-cabal-dev too tight


> Am 05.05.2015 um 10:38 schrieb Joachim Breitner <nomeata@debian.org>:
> Hi Sven,
> your fix #778987 might have been too tight: Since you have a strict "="
> dependency, whenever we have to binNMU libghc-cabal-dev, we also have to
> do the same to cabal-install, and in the meantime, cabal-install is
> uninstallable in sid. I think we should try to avoid that.
> Wouldn’t it be sufficient to have a ">=" dependency on the version it
> was built with? Possibly even ">= <upstream-part-of-the-version>“? 

I guess it doesn’t need to depend on the exact version it was built against.
I would suggest
>= <upstream-part-of-the-version> && << <upstream-part-of-the-version>.1 (this .1 is intentional)
This way cabal-install needs to be rebuilt whenever there is a new upstream
version of libghc-cabal-dev.
If we don’t set that upper bound, we risk that libraries (like hgettext) are
built against newer upstream versions of libghc-cabal-dev than cabal-install,
which could cause a mismatch between the CLI of cabal-install and that of
the library.


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