[MacPorts] #57412: cxx11 1.1 portgroup: add dependency on cctools

[MacPorts]

#57412: cxx11 1.1 portgroup: add dependency on cctools
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:              |
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Comment (by kencu):

 Agree, it's a concert of build system supports, not just the compiler.

 Probably also `ld64`, if that's not automatic.

 Some ports may still need to be tweaked by passing in the newer build
 system locations, as they default to the system ones, but this would help
 most of them.

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Ticket URL: <https://trac.macports.org/ticket/57412#comment:1>
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