Hi Ben, hi Reinhard,
On Di 24 Jan 2012 16:42:09 CET Benjamin Shadwick wrote:
Those bug threads actually make me *less* nervous. The first one explains that libjpeg-turbo is just a derivative of standard libjpeg that uses SIMD instructions to accelerate functionality by 2-4x. The second mentions that there have been improvements to libjpeg-turbo to make it ABI-compatible with libjpeg8.
Looking at the readme ( http://libjpeg-turbo.svn.sourceforge.net/viewvc/libjpeg-turbo/trunk/README-t...) on the (still active) sourceforge project shows that by default it is API/ABI compatible with libjpeg v6b, which is what is currently most widely used. It can also be configured to be compatible with v7 or v8 instead, but there are a few v7+ features that are not supported.
--
- Ben S.
after some more reading I must say I (at least by theory) agree with
Benjamin. It is rather simple to enable libjpeg v8 emulation in
libjpeg-turbo. So for squeeze, I will leave 6b emulation mode in our
package, and for wheezy+ I enable v8 emulation and build new packages.
Greets, Mike
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