[MacPorts] #66188: libsdl2: re-enable universal building i386/x86_64

[MacPorts]

#66188: libsdl2: re-enable universal building i386/x86_64
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  Reporter:  kencu    |      Owner:  jmroot
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  libsdl2  |
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Comment (by jmroot):

 Replying to [comment:2 kencu]:
 > I would test ARC in the i386 slice, if I can see how to.

 If i386 SDL games run usably at all I guess that's good enough to allow
 it. The symptom of missing ARC support could be memory leaks though.

 Did the system clang ever start allowing `-fobjc-arc` together with `-arch
 i386`? The report that prompted the change was on 10.9.

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Ticket URL: <https://trac.macports.org/ticket/66188#comment:4>
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