[MacPorts] #65044: R @4.1.3 fails to configure on 10.4.11: Failed to configure R: Invalid value for configure.compiler

[MacPorts]

#65044: R @4.1.3 fails to configure on 10.4.11: Failed to configure R: Invalid
value for configure.compiler
---------------------------+----------------------------
  Reporter:  barracuda156  |      Owner:  kjellpk
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, tiger
      Port:  R             |
---------------------------+----------------------------

Comment (by barracuda156):

 Replying to [comment:2 ryandesign]:
 > I don't think MacPorts chose gcc-4.2 as the compiler, and therefore I'm
 not convinced that blacklisting it would fix anything; it looks like
 MacPorts chose the empty string as the compiler, which shouldn't happen.
 One cause of that was fixed in MacPorts 2.7.2 in #63281 but if you're
 seeing this with MacPorts 2.7.2 then maybe there is a second cause that we
 haven't found yet. Could you attach the main.log? Maybe it would help us
 understand what went wrong.

 Yes, this is in Macports 2.7.2. I will attach logs once back to PPC
 machine.

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Ticket URL: <https://trac.macports.org/ticket/65044#comment:3>
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