[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 ryandesign):

 Replying to [attachment:Makefile.in.diff ballapete]:
 > Patch to correct date in libguile/Makefile.in

 This patch (and the build dependency on coreutils) is needed on all
 versions of macOS that would run this code. macOS (BSD) `date` doesn't
 support the options being used there.

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Ticket URL: <https://trac.macports.org/ticket/54124#comment:70>
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