[Bug 600243] Review Request: libjpeg-turbo - MMX/SSE accelerated libjpeg

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https://bugzilla.redhat.com/show_bug.cgi?id=600243

--- Comment #38 from Chen Lei <supercyper1 at gmail.com> 2010-06-16 07:57:25 EDT ---
(In reply to comment #37)
> Some people are actually using rawhide distribution. You don't need to
> deliberately create broken deps if it's easy to avoid that.
> First create a compatible package, then fix up everything that depends on the
> compatibility interface, and only after everything is fixed remove the
> compatibility interface.
> The libjpeg-turbo feature page states that no rebuilds are needed to switch to
> libjpeg-turbo as it is a drop-in replacement. You are now suggesting to make it
> non-drop-in, why would that be good? Also, the feature page says there is a
> contingency plan to revert back to libjpeg if there are serious problems. Chan,
> do you understand that if you quickly rebuild all packages to depend on
> libjpeg-turbo directly, then it will take another rebuild to revert back to
> libjpeg if it turns out libjpeg-turbo isn't working out?    

Only 5 packages need fix, among those packages only openjdk need a quick fix.
For openjdk, the fix is simply removing explict depencenies on libjpeg, we
don't need another rebuild if we revert back to libjpeg.

"yum install libjpeg" will be silly if we add provides libjpeg to
libjpeg-turbo-tools. I don't want to discuss this issue again unless fedora
packaging guideline recommends to do so.

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