msautotest issues on Windows

[Frank Warmerdam]

Tamas Szekeres wrote:
> Developers,
> 
> As I've noted before all of the the 3 msautotest suite suffer for some
> or more failures on Windows with the latest SVN version. We have now 3
> different builders on the Windows platform on the buildbot
> configuration at http://buildbot.osgeo.org:8504/
> 
> One of them produces real WIN64 images (the dependent libraries have
> also been compiled for x64). This one is the winner in producing the
> failures ;-)
> 
> I would suggest at least to identify whether these failures are
> expected or not before issuing the first RC. If we expect different
> results of different platforms then we should split up the tests
> accordingly.
> 
> The resulting files on the Windows builders can now be inspected by
> clicking on the Browse files link at the property page of the
> builders.

Tamas,

If you can zip up the msautotest tree for one or more of these cases,
I can do a visual inspection.  I have an OpenEV "tool" that makes it fairly
easy for me to step through the failures and compare the images.  But
pulling files 1 by 1 by http doesn't seem like much fun.

It is unfortunate but floating point differences between different
builds results in differences in results.  On Linux I find 32bit vs.
64bit is different and 32bit optimized is different than 32bit debug.
The differences are all pretty subtle though.

The "gdal" and "misc" test sets all pass with the "msx fgs" optimized
builds on linux which I've been using as my reference platform.

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org