[MacPorts] #67292: port:clamav should use rust or compiler_wrapper PG (and the rust PG might be simplifiable)

[MacPorts]

#67292: port:clamav should use rust or compiler_wrapper PG (and the rust PG might
be simplifiable)
---------------------+--------------------
  Reporter:  RJVB    |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  clamav  |
---------------------+--------------------

Comment (by RJVB):

 Tested with

 {{{
 > cd /path/to/tree/sysutils/clamav port -nok -v build configure.compiler
 =macports-clang-9.0 configureccache=yes build.jobs=1
 }}}

 There's no point in attaching the successful build log; it just shows a
 whole bunch of "Compiling foo vX.Y.Z" lines instead of the actual commands
 showing which compiler is being used.

-- 
Ticket URL: <https://trac.macports.org/ticket/67292#comment:2>
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