[MacPorts] #54124: guile @2.2.2 won't build on PPC Leopard, Mac OS X 10.5.8, because is uses non-existing /lib/cpp as C preprocessor

[MacPorts]

#54124: guile @2.2.2 won't build on PPC Leopard, Mac OS X 10.5.8, because is uses
non-existing /lib/cpp as C preprocessor
------------------------+---------------------------------------
  Reporter:  ballapete  |      Owner:  kencu
      Type:  defect     |     Status:  closed
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.1
Resolution:  fixed      |   Keywords:  tiger leopard snowleopard
      Port:  guile      |
------------------------+---------------------------------------

Comment (by barracuda156):

 Replying to [comment:63 kencu]:
 > I started making a new set of prebuilts for PPC 10.5, and there were
 just too many to bother with so I scrubbed the project. Besides, are the
 10.4 PPC ones different or the same? If we ever do use them, should they
 be build on 10.4? Does it make any difference. There seems to be no
 processor specific code in them ("cpu_subtype_all", etc).
 >
 > Anyway, it works fine as I pushed it now, other than requiring a bit of
 patience to build them. If we can get a reliable set of prebuilts to use,
 I'll update the port with them later.

 It probably makes sense to make prebuilts, since bootstrapping is insanely
 slow even on G5 2.3 (on the Quad it builds overnight). Can’t imagine how
 long it takes on a single core G4.

 I could perhaps make prebuilts for guile 3.0.8, if you instruct me what
 exactly to do. (I don’t want to do it twice, for obvious reasons.)
 Or do I just build normally and copy a folder of built files from Stage 0?

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Ticket URL: <https://trac.macports.org/ticket/54124#comment:81>
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