[MacPorts] #55415: cmake @3.10.0 does not build on PPC Tiger, Mac OS X 10.4.11, because error: void value not ignored as it ought to be

[MacPorts]

#55415: cmake @3.10.0 does not build on PPC Tiger, Mac OS X 10.4.11, because error:
void value not ignored as it ought to be
------------------------+-----------------------
  Reporter:  ballapete  |      Owner:  michaelld
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.2
Resolution:             |   Keywords:  tiger
      Port:  cmake      |
------------------------+-----------------------

Comment (by kencu):

 Oh, this is a different error, Michael. Peter is building this with gcc6
 already, which supports c++11. This issue is a Tiger header thing. That
 statement should fix it.

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Ticket URL: <https://trac.macports.org/ticket/55415#comment:5>
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