Help needed with tkimage bug

[Denis Leroy]

Sergio Pascual wrote:
> I maintain ds9, a viewer of FITS files (a kind of image format used by
> astronomers). ds9 is written in tcl and requires other packages, such
> as tkimg.
> 
> tkimg comes with its own version of libz, libpng, libjpeg and libtiff.
> I patched the software to use system libraries instead. Patched tkimg
> works well with ds9.
> 
> But tkimg seems to crash in other conditions. As reported here
> https://bugzilla.redhat.com/show_bug.cgi?id=468357
> tkimage crashed with some simple tests.
> 
> The bug is caused by my patches, the package without the patches works
> well. I could revert them, but that implies using the bundled graphic
> libraries instead of the system ones. In the other hand I don't have
> the tcl knowledge to fix it. Any help?

have you compared the sources of the included libraries versus the 
official tarballs ? The libraries might have been patched, for example 
to use TCL memory allocation mechanisms, in which case you really have 
no choice but to use tkimg' versions...

-denis