Re: [PATCH 0/3] add c-ares and aria2

[Efraim Flashner]

On Tue, 03 Nov 2015 14:35:07 +0100
address@hidden (Ludovic Courtès) wrote:

> Efraim Flashner <address@hidden> skribis:
> 
> > This patch has driven me crazy a bit. C-ares is a library for asynchronous 
> > DNS
> > lookups, and aria2 is a cli program to download multiple files/torrents
> > simultaneously, and also a git-annex dependency. C-ares builds without any
> > problems, but aria2 was a different story. The first problem is that the 
> > tests
> > seem to need network connectivity, and it tries to access files outside the
> > build chroot. Disabling the tests was the easy part.  
> 
> It’s cheating!  ;-)  Could you investigate and see whether/how tests
> could run in the build environment?  A common problem wrt. networking in
> host name lookups.  In the build environment, only “localhost” can be
> found.
> 
> > The second problem was that pkg-config wouldn't find c-ares, so it
> > kept on building without it.  
> 
> In that case, I would do this:
> 
>   guix build -K aria2
>   # … build fails
>   cd /tmp/nix-build*aria2*
>   source environment-variables
>   pkg-config c-ares --libs
> 
> (Replace “c-ares” with the name corresponding to the actual .pc file
> provided by c-ares.)
> 
> It might be that this command fails because of a missing dependency that
> the .pc file requires.
> 
> Ludo’.

In the end rebuilding c-ares with the release tarball and not the github
tarball fixed the issues with aria2 not recognizing c-ares. I wasn't able to
get anything more out of aria2, more than it not finding the locations and
leaving me with with variables pointing to /path/to/dir and the like.

-- 
Efraim Flashner   <address@hidden>   אפרים פלשנר
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0002-gnu-Add-aria2.patch
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