[MacPorts] #52210: libsdl2 can build on 10.6, but instructions a bit vague

[MacPorts]

#52210: libsdl2 can build on 10.6, but instructions a bit vague
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  Reporter:  kenneth.f.cunningham@…  |      Owner:  jmroot
      Type:  defect                  |     Status:  new
  Priority:  Low                     |  Milestone:
 Component:  ports                   |    Version:
Resolution:                          |   Keywords:
      Port:  libsdl2                 |
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Comment (by mojca):

 Thank you. I believe I should be able to fix all problems now, but the
 number of issues with `SDL_cocoawindow.m` is still pretty high (and lower
 on the priority list).

 Btw: we now have `#!objc` syntax working. If you put this on top, you get
 proper syntax highlighting :)

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Ticket URL: <https://trac.macports.org/ticket/52210#comment:22>
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