[MacPorts] #54986: swig-php: Add variants for php70, php71, make php71 the default

[MacPorts]

#54986: swig-php: Add variants for php70, php71, make php71 the default
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  Reporter:  ryandesign  |      Owner:  michaelld
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:  fixed       |   Keywords:
      Port:  swig-php    |
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Comment (by michaelld):

 Yeah I don't use this part of SWIG, so I don't know how it works. It looks
 from the contents of various variants that it installs the same files no
 matter which variant is selected; the actual PHP #include's don't even
 seem to be used. I've updated the port by adding the +php7X variants. I
 made 7.1 the default, but that's easy to change & I'll do so shortly. Thx
 for the feedback.

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Ticket URL: <https://trac.macports.org/ticket/54986#comment:4>
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