[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 kencu):

 I don't think the changes in `cctools` or `ld64*` should have any effect
 on building this port on 10.4 PPC. Those changes were only set to target
 Xcode 9+.

 I assume you have cleaned and tried the rebuild at least once, just to
 check for inscrutable errors in building.

 My first thought when I see weird errors like this in ports that are known
 to work on other systems is to think of issues with parallel building. So
 I usually try disabling that. We have had issues with exactly that on gcc*
 in the past.

 I also find the past trac tickets very helpful, and a similar error was
 found in this ticket [ticket:51245], with a suggestion for a fix that
 worked at that time. So I'd probably try that next. There are also other
 tickets with this error, and various fixes that have worked over time, I
 note.

-- 
Ticket URL: <https://trac.macports.org/ticket/56922#comment:7>
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