[MacPorts] #45840: gcc49: update to 4.9.2

[MacPorts]

#45840: gcc49: update to 4.9.2
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  Reporter:  ryandesign@…  |      Owner:  mww@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  haspatch
      Port:  gcc49         |
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Comment (by larryv@…):

 Replying to [comment:4 ryandesign@…]:
 > If this means we need to fix the patch in all the gcc ports, I would
 > really appreciate it if we could keep the ports as similar as
 > possible, including using the same patchfile name and placing the
 > `patchfiles` directive at the same point in each portfile.

 Sure, that won’t be a problem. That’ll be be easier this time, since I’m
 actually authoring the fix instead of grabbing it from a mailing list
 somewhere.

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Ticket URL: <https://trac.macports.org/ticket/45840#comment:5>
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