[MacPorts] #56922: Libgcc7 @7.3.0_1 fails to build on PPC Tiger, Mac OS X 10.4.11, because comparison of stages 2 and 3 fails

[MacPorts]

#56922: Libgcc7 @7.3.0_1 fails to build on PPC Tiger, Mac OS X 10.4.11, because
comparison of stages 2 and 3 fails
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.3
Resolution:             |   Keywords:  tiger
      Port:  libgcc7    |
------------------------+--------------------

Comment (by ballapete):

 By some mistake, trying to upgrade packages that do not depend on
 libgcc/libgcc7 indirectly, the old build directory was lost. Could be the
 difference is in debug information so I am going to try the `configure`
 option `--with-build-config=bootstrap-debug`.

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Ticket URL: <https://trac.macports.org/ticket/56922#comment:11>
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