Bug#857940: diffoscope: FTBFS: test errors

[Chris Lamb]

Hi Mattia,

> […]

Assuming this is from...

  https://buildd.debian.org/status/fetch.php?pkg=diffoscope&arch=all&ver=79&stamp=1489658432&raw=0

... it appears to be caused by "graphicsmagick-imagemagick-compat"
package being installed. With this package installed locally I can
reproduce the test failures.

I don't yet know why it is being installed at all; it isn't when
installing all the build-dependencies on my machine, even under
experimental.

Nor is it being installed on tests.reproducible.org or we would
naturally have all seen this prior to upload. Indeed, we should
have seen it whenever we first pushed to experimental weeks ago;
there have been no code changes to the ICO or JPEG handler.

(Perhaps the/this experimental:all buildd is installing packages
with Recommends, or a different APT pinning, or...?)


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-