[MacPorts] #55200: gmp @6.1.2 configure: error: cannot find output from flex; giving up

[MacPorts]

#55200: gmp @6.1.2 configure: error: cannot find output from flex; giving up
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  Reporter:  stefan-c-kremer  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  gmp              |
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Comment (by kencu):

 that's progress!

 Something's a bit funny, though -- it should have built. The buildbots
 build it OK.

 -- MacPorts `flex` has a dep on m4. Your configure.log said it was using
 the systems `/usr/bin/flex` -- there already is `/usr/bin/m4`, so that
 should have worked.

 I wonder if you had MacPort's `flex` installed, but not MacPort's `m4`, so
 by the path settings that got called by the script instead of
 `/usr/bin/flex`, but there was no MacPorts `m4`, so it died .... kind of a
 circuitous route to failure.

--
Ticket URL: <https://trac.macports.org/ticket/55200#comment:12>
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