[MacPorts] #54215: gcc7: broken on powerpc

[MacPorts]

#54215: gcc7: broken on powerpc
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  Reporter:  mojca   |      Owner:
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  haspatch
      Port:  gcc7    |
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Comment (by ryandesign):

 Replying to [comment:7 kencu]:
 > I'm happy to try a build in the morning as well. I saw this but was
 hesitating... this means changing libgcc to libgcc7 as well, correct?

 No... what makes you think that?

 The version of one of the gcc libraries changed in gcc 7.x. Therefore,
 since libgcc contains that new version, a new libgcc6 port had to be
 created to provide the older version of the library for use by gcc 6.x and
 earlier. The ports should be correctly handling all these details already
 so nothing about that needs to be changed for this ticket.

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Ticket URL: <https://trac.macports.org/ticket/54215#comment:8>
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