[MacPorts] #67060: eigen3 does not find correct Boost

[MacPorts]

#67060: eigen3 does not find correct Boost
--------------------------+----------------------
 Reporter:  barracuda156  |      Owner:  eborisch
     Type:  defect        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.8.1
 Keywords:                |       Port:  eigen3
--------------------------+----------------------
 From configure output of `eigen3`:

 {{{
 -- Could NOT find Boost (missing: Boost_INCLUDE_DIR) (Required is at least
 version "1.53.0")
 . . .
 -- Could NOT find FFTW (missing: FFTW_LIBRARIES)
 }}}

 Perhaps worth setting `Boost` PG and ''maybe'' add FFTW support?

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Ticket URL: <https://trac.macports.org/ticket/67060>
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