[MacPorts] #67808: graph-tool 2.46 build fails on Apple Silicon

[MacPorts]

#67808: graph-tool 2.46 build fails on Apple Silicon
----------------------------+--------------------
  Reporter:  essandess      |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:  arm64
      Port:  py-graph-tool  |
----------------------------+--------------------

Comment (by ryandesign):

 Looks like it's trying to use `std::unary_function` which was removed from
 the C++ standard as of C++17. gcc has not yet removed `unary_function`
 even when requesting C++17 mode but clang has.

 I also see references to boost 1.76 in the log. boost 1.76 uses
 `unary_function`. Use a newer version of boost that no longer attempts to
 use `unary_function`.

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Ticket URL: <https://trac.macports.org/ticket/67808#comment:2>
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