[Debian-med-packaging] Bug#697841: ufvconvert requires libQtOpenGL.so.4

[tom fogal]

Mathieu Malaterre writes:
> Control: found -1 3.0.0-2
> 
> Bug #697841 is hard to fix. Indeed:
> 
> $ readelf -d /usr/bin/uvfconvert
> [...]
>  0x0000000000000001 (NEEDED)             Shared library: [libGLU.so.1]
>  0x0000000000000001 (NEEDED)             Shared library: [libQtOpenGL.so.4]
>  0x0000000000000001 (NEEDED)             Shared library: [libQtGui.so.4]
> 
> 
> But at the same time:
> 
> $ ldd -u -r /usr/bin/uvfconvert
> -> none !
> 
> Need to talk with upstream why a command line tool needs so much
> stuff from Qt

Yeah, we'd *love* if the Qt dependency could be removed, too.
Unfortunately we use Qt for loading images, and thus need it to do
batch conversion of image sets, a fairly popular use case.

We could use something like FreeImage, but don't want to add another
dependency just for this.  The other option is coding specifically for
libpng and libtiff directly (I think we already have code specific to
jpeg, due to IJG's jpeg not sufficing). libpng and libtiff are already
deps due to Qt, so it doesn't add anything to our set of dependencies.

Patches welcome...