[Insight-developers] Fwd: Rogue clang ITK dashboards

[David Cole]

This is info from Sean McBride, one of the maintainers of the Rogue Research
dashboard machines.

His claim is that clang currently works for their stuff, CMake, VXL, GDCM,
and VTK. (This is the same clang (from their svn trunk) that is having 272
build errors on the ITK dashboard submission.)

However, when setting up dashboards for all those projects, errors were
found in the project code *and* in clang.

I think we should pay attention to this, and push bugs through to the clang
compiler guys if we want it to work well with ITK.

Many of the errors that occur may have already been fixed in the trunk of
VNL.... See Sean's reply directly below for more details.


- David Cole



---------- Forwarded message ----------
From: Sean McBride <sean at rogue-research.com>
Date: Tue, Oct 26, 2010 at 11:38 AM
Subject: Re: Rogue clang ITK dashboards
To: David Cole <david.cole at kitware.com>
Cc: Luis Ibanez <luis.ibanez at kitware.com>


On Tue, 26 Oct 2010 11:22:59 -0400, David Cole said:

>I am on the weekly ITK t-con right now. Both last week and this week,
people
>are complaining about the clang dashboard being non-green, and talking
about
>moving it to a non-expected section to remove it from the view of ITK
>developers.
>
>If you would like to join us, and explain anything about the clang
>dashboard, please do... we're on this line until noon or so:
>
>  The tcon number is
>  800-728-9607 or +1 9139049873, access code 6815251
>
>
>If not, at least please reply to this email and let me know the answers to
>these questions:
>
>Is that a stable install of clang on the machine?
>
>Are these build errors real ITK problems, or is something amiss with the
>clang compiler...?
>http://www.cdash.org/CDash/viewBuildError.php?buildid=759862

David, Luis,

I can change it to Experimental, certainly.

I have not had the chance to investigate the errors, but I suspect some
are real errors and some are clang errors.  Over the last few months,
I've set up clang dashboards for CMake, VXL, GDCM, and VTK, and in each
case bugs were found in _both_ clang and the code of the projects being
built.  All those projects now build with clang BTW.  I suspect the same
will be true with ITK.  Looking at the current errors, some seem to be
vnl-related.  What version of VNL does ITK use?  VNL only started
building with clang a month or so ago.  In fact, the ITK errors are what
prompted me to create a VNL dashboard.

clang's C++ support is new, and so I'm using a build of clang from its
svn trunk.  But it's stable in the sense that it can build CMake, VXL,
GDCM, VTK, and our code.

BTW: I tried calling, but arrived in the middle of a conversation, and
sheepishly didn't want to interrupt, so emailed instead... :)

Cheers,

--
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada
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