[MacPorts] #66167: libsdl2 +universal fails on 10.9

[MacPorts]

#66167: libsdl2 +universal fails on 10.9
--------------------+---------------------
 Reporter:  Gcenx   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.8.0
 Keywords:          |       Port:  libsdl2
--------------------+---------------------
 {{{
 :info:build error: -fobjc-arc is not supported on platforms using the
 legacy runtime
 :info:build make: *** [build/SDL_cocoaclipboard.lo] Error 1
 :info:build make: *** Waiting for unfinished jobs....
 :info:build error: -fobjc-arc is not supported on platforms using the
 legacy runtime
 :info:build make: *** [build/SDL_cocoaevents.lo] Error 1
 :info:build error: -fobjc-arc is not supported on platforms using the
 legacy runtime
 :info:build make: *** [build/SDL_cocoakeyboard.lo] Error 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66167>
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