[MacPorts] #48345: Building for 10.4u SDK on 10.6 uses gcc-4.0 even though building directly on 10.4 uses the newer apple-gcc-4.2

[MacPorts]

#48345: Building for 10.4u SDK on 10.6 uses gcc-4.0 even though building directly
on 10.4 uses the newer apple-gcc-4.2
---------------------------+--------------------------------
  Reporter:  ryandesign@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  base          |    Version:  2.3.99
Resolution:                |   Keywords:
      Port:                |
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Comment (by jeremyhu@…):

 Wow, that was 3 years ago.  Sorry, but the reasoning has left my brain at
 this point.  I remember making that change and being upset that it was
 that way, but I don't recall exactly what the fallout was.

 Probably the easiest way to find out is to revert it and see what breaks.
 Since you're interested in that case, can you give it a whirl and see what
 falls out?  It might be the case that gcc-4.2 doesn't work for some
 reason, but maybe I fixed that in apple-gcc-4.2.

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Ticket URL: <https://trac.macports.org/ticket/48345#comment:1>
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