Bug#399178: [Buildd-tools-devel] Bug#399178: noisy warnings: "Unable to locate package..."

[Roger Leigh]

Martin Michlmayr <tbm at cyrius.com> writes:

> A current example is arpack++_2.2-9 which will give you:
>
> ** Using build dependencies supplied by package:
> Build-Depends: debhelper (>> 4.1.0 ), g++ (>> 2.95), libg2c0-dev, refblas3-dev | libblas-3.so, lapack3-dev | lapack-3.so, libarpack2-dev, chrpath
> Checking for already installed source dependencies...
> W: Unable to locate package lapack-3.so

This is from apt-cache:

% apt-cache show lapack-3.so
W: Unable to locate package lapack-3.so
E: No packages found

I can't find a warning suppression option on the command-line or in
the APT configuration options.

While it would be possible to send all stderr output to /dev/null, I
don't feel that this is appropriate, because it will discard all error
reporting when running apt-cache.  One solution I am now looking at is
sending stderr to the package log (rather than the main log) for just
apt-cache invokations.  Errors and warnings will still be logged, but
they will then not get mailed to you separately.  Does that sound OK.

Note to self: Use Perl IPC::Open3 to do the stream redirects.


Regards,
Roger

-- 
  .''`.  Roger Leigh
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