[Interest] libjpeg vs. libjpeg-turbo/mozjpeg

[René J.V. Bertin]

On Saturday May 23 2015 11:20:20 Allan Sandfeld Jensen wrote:

> On some Linux distros libjpeg-turbo is installed as the default libjpeg, and 
> Qt automatically links to that. I have not heard of any issues with that.

Yes, this I know, it's apparently the case with most distros. What is much harder to assess is

- how about non-x86 architectures (PPC in casu)?
- how about the additional features in the current libjpeg (9) and/or features that might be planned for inclusion in the next version. Are those used or likely to be used at some point in Qt?
- would it be in any way disruptive for your build/distribution system if the jpeg libraries in MacPorts are downgraded to the v8 ABI?

Basically I'm trying to assess what arguments there are to keep the standard libjpeg around in MacPorts in addition to an alternative.

Thanks,
René