[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:  new                
 Priority:  Normal               |   Milestone:  Port Bugs          
Component:  ports                |     Version:  1.7.1              
 Keywords:  mmx Intel            |        Port:  ffmpeg             
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 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.

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