[MacPorts] #68373: boost176: error: integer value -1 is outside the valid range of values [0, 3] for this enumeration type [-Wenum-constexpr-conversion]

[MacPorts]

#68373: boost176: error: integer value -1 is outside the valid range of values [0,
3] for this enumeration type [-Wenum-constexpr-conversion]
---------------------+-----------------------
  Reporter:  mf2k    |      Owner:  michaelld
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.8.99
Resolution:          |   Keywords:
      Port:  boost   |
---------------------+-----------------------

Comment (by mascguy):

 This is likely due to use of `-Wall`, and/or ultra-strict compilation
 settings.

 More to follow, once I've looked more closely at upstream's build script.

-- 
Ticket URL: <https://trac.macports.org/ticket/68373#comment:3>
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