[Development] CI - Mesa warning "couldn't open dxtn.dll" on Windows machines

[Koehne Kai]

Hi,

I just ran into suspicious compiler warnings in the CI system logs for Windows:

  Mesa warning: couldn't open dxtn.dll, software DXTn compression/decompression unavailable
  Mesa warning: couldn't open dxtn.dll, software DXTn compression/decompression unavailable
  Mesa warning: couldn't open dxtn.dll, software DXTn compression/decompression unavailable
  Mesa warning: couldn't open dxtn.dll, software DXTn compression/decompression unavailable

(from 
http://testresults.qt-project.org/ci/QtDeclarative_stable_Integration/build_00830/win32-msvc2010_developer-build_qtnamespace_Windows_7/log.txt.gz
)

Digging a bit it seems that some logs even back from 2012 have these errors, e.g.

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_04706/win32-msvc2010_Windows_7/log.txt.gz

I don't think the warning itself is crucial. Anyhow, did anyone ever checked out whether there's an easy fix for it?

Regards

Kai Koehne

-- 
   Kai Köhne, Senior Software Engineer - Digia, Qt
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