[MacPorts] #54215: gcc7, libgcc: broken on powerpc

[MacPorts]

#54215: gcc7, libgcc: broken on powerpc
---------------------------+----------------------
  Reporter:  mojca         |      Owner:  kencu
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:  fixed         |   Keywords:  haspatch
      Port:  gcc7, libgcc  |
---------------------------+----------------------

Comment (by ccorn):

 > Here on Mac OS X 10.5.8 {{{make check}}} ends early after almost 50 GB
 of core dumps
 The ending of {{{make-k check}}} with error 2 after the libatomic tests
 also happens in the other test logs posted here. That seems to be nothing
 out of the ordinary. However, even my universal builds leave no more than
 2.5 GiB in the build tree.

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Ticket URL: <https://trac.macports.org/ticket/54215#comment:44>
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