[MacPorts] #19314: ffmpeg: enable mmx optimizations by default

[MacPorts]

#19314: ffmpeg: enable mmx optimizations by default
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 Reporter:  devans@…             |       Owner:  devans@…           
     Type:  defect               |      Status:  assigned           
 Priority:  Normal               |   Milestone:  Port Bugs          
Component:  ports                |     Version:  1.7.1              
 Keywords:  mmx Intel            |        Port:  ffmpeg             
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Changes (by devans@…):

  * status:  new => assigned


Old description:

> Based on recent reports the latest version of ffmpeg builds properly on
> Intel platforms (#19293).
>
> XCode 3.1.2 or better is required on Leopard.
>
> The attached proposed patch enables auto configuration of mmx
> optimizations as the default and checks for the proper XCode
> version on Leopard.
>
> A no_mmx variant is included to disable these optimizations if
> desired.
>
> Please respond if you have any concerns with this patch based
> on test results on Intel platforms.

New description:

 Based on recent reports the latest version of ffmpeg +mmx builds properly
 on Intel platforms (#19293).

 XCode 3.1.2 or better is required on Leopard.

 The attached proposed patch enables auto configuration of mmx
 optimizations as the default and checks for the proper XCode
 version on Leopard.

 A no_mmx variant is included to disable these optimizations if
 desired.

 Please respond if you have any concerns with this patch based
 on test results on Intel platforms.

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Ticket URL: <http://trac.macports.org/ticket/19314#comment:1>
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