[MacPorts] #56954: py-numpy: numpy.polyfit broken with +gfortran variant on High Sierra

[MacPorts]

#56954: py-numpy: numpy.polyfit broken with +gfortran variant on High Sierra
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  Reporter:  mojca     |      Owner:  michaelld
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  py-numpy  |
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Comment (by andreavicere):

 On my system (MacOS Mojave 10.14, macports 2.5.3) switching to gcc8 **did
 not** fix the issue.

 Moreover, I have the same issue also using the `polyfit` function from
 `scipy`, and also in this case switching to `gcc8` does not solve the
 problem: I tried

 {{{
 sudo port install py37-scipy +gcc8 -gfortran
 sudo port install py37-numpy +gcc8 -gfortran
 }}}

 but I still obtain wrong fit results.

 Looks very much like related to Apple dropping support for 32bit.

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Ticket URL: <https://trac.macports.org/ticket/56954#comment:24>
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