[MacPorts] #24778: please add mcpu (march is only for x86)

[MacPorts]

#24778: please add mcpu (march is only for x86)
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 Reporter:  randomshinichi4869@…          |       Owner:  macports-tickets@…                   
     Type:  enhancement                   |      Status:  new                                  
 Priority:  Normal                        |   Milestone:                                       
Component:  base                          |     Version:                                       
 Keywords:                                |        Port:                                       
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Comment(by afb@…):

 Using `configure.optflags` meanwhile worksforme...
 I think m32/m64/etc got derailed with +universal ?

 It used to be hardcoded "-O2" before it was changed.
 Went ricing in r33503, I think. Some "-Omg" request.


 I'm all for wiping configure's m32/m64/mtune/march...
 Nobody is using them anyway, but build_arch/optflags ?

 And top using 5-10% is "standard" on Mac OS X, I think.
 At least with Apple's top, haven't tried using htop.

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Ticket URL: <http://trac.macports.org/ticket/24778#comment:9>
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