[MacPorts] #70047: re2 @2024-04-01: fatal error: 'filesystem' file not found (was: re2 fails to build)

[MacPorts]

#70047: re2 @2024-04-01: fatal error: 'filesystem' file not found
---------------------------+-------------------------
  Reporter:  workflowsguy  |      Owner:  herbygillot
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  highsierra
      Port:  re2 abseil    |
---------------------------+-------------------------
Changes (by ryandesign):

 * keywords:   => highsierra


Comment:

 Log says:

 {{{
 fatal error: 'filesystem' file not found
 }}}

 'filesystem' is only available on macOS 10.15 and later and I see you're
 on macOS 10.13.

 Alternative: the port could try to use the legacysupport portgroup's
 feature of using a newer MacPorts copy of libc++. Consequences unknown.

-- 
Ticket URL: <https://trac.macports.org/ticket/70047#comment:2>
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