Re: insighttoolkit4 backport on wheezy 32bit -- 2 tests failures
On Fri, 30 May 2014, Gert Wollny wrote:
> On Fri, 2014-05-30 at 08:57 -0400, Yaroslav Halchenko wrote:
> > > Considering this, one could indeed disable this test but then one should
> > > probably also disable the corresponding functionality.
> > indeed. What would be a preferable way to disable it?
> > a. throw exception when trying to access it?
> > b. just remove from the API?
> I've dug a bit deeper and what comes out is the following:
> The test image is a four channel image, and now I assume, that the old
> version of libtiff doesn't support the alpha channel when writing to
> JPEG, because COMPRESSION_JPEG is already defined in the according
> tiff.h header file.
> I'd suggest to fallback to "COMPRESSION_PACKBITS" in itkTIFFImageIO.cxx
> for case TIFFImageIO::JPEG, old libtiff and more than three color
> components. (Patch attached) This way calling code doesn't break, and I
> doubt that the compression type is crucial for storing an image.
cool -- thanks -- I will try it out
(lazy me just running now
sudo nd_build nd+debian wheezy i386 *~nd70*dsc --hookdir=$HOME/neurodebian/tools/hooks)
and will wait for it to fail ;)
> > > > > would you mind adding a direct dependency to insighttoolkit4 package's control?
> > > Actually, it is currently not possible - libvtk5-dev is required
> > > depends on libtiff4-dev.
> > I must be too slow on Friday -- could you elaborate? even if
> > libvtk5-dev bdepends on libtiff4-dev, that doesn't forbid itk4 bdepend
> > on it...
> libvtk5-dev does not bdepend on libtiff4-dev, it *depends* on it, i.e.
> when you install libtiff5-dev on wheezy, libtiff4-dev and libvtk5-dev
> will be removed (that's how I realized that there is a problem).
gotcha
> The other question is of course, when tk is linked against libtiff4 and
> itk against libtiff5 and both are loaded by program X then you can not
> be sure what code is actually called when a TIFF function is invoked
> that is available in both libraries.
indeed
--
Yaroslav O. Halchenko, Ph.D.
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Research Scientist, Psychological and Brain Sciences Dept.
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419
WWW: http://www.linkedin.com/in/yarik
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