On Sunday May 24 2015 02:16:06 Ryan Schmidt wrote:

>I don't currently plan to keep a functional jpeg port around. If it turns out 
>later that some port or someone absolutely requires the original libjpeg we 
>can add a new port for it at that time, but based on other distributions 
>adopting libjpeg-turbo I don't foresee that need arising.

I think I made it clear that I have this requirement, but I suppose I'll just 
keep extending my own port repository. I might decide to downgrade port:jpeg to 
v8 just to bring it in line with the alternatives, but I think I won't. I'm 
just not convinced that recent/fast machines will see any measurable gain from 
the whole exercise.


>MacPorts does not currently keep track of library version information. I'm not 
>saying it would be bad to do so, just that we currently don't. Are you 
>proposing that the jpeg library ports alone should track this (what makes them 
>special?)

The issue is moot if port:jpeg is discontinued. If it's not, it's special in 
that there are 3 alternatives that each provide one of two ABI versions, and 
only port:jpeg being unambiguous about what version it provides.
Anyway, I think it's something that can be decided upon on a case-by-case 
basis. There is precedence; gstreamer comes to mind.

> (such as is the case for libjpeg-turbo vs. mozjpeg).

About that: the libjpeg-turbo site makes a rather strong point that mozjpeg 
isn't suitable (or at least not a logical candidate) as a generic libjpeg 
replacement.

R.

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