[MacPorts] #54376: math/gsl documentation variant now depends on Sphinx

[MacPorts]

#54376: math/gsl documentation variant now depends on Sphinx
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  Reporter:  slewsys  |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:           |
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Comment (by slewsys):

 The previous `math_gsl_Portfile.diff` fails to recursively copy
 directories under html.  New Portfile.diff  attached uses `file copy`.

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Ticket URL: <https://trac.macports.org/ticket/54376#comment:1>
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