[MacPorts] #34618: swig: add swig-php53 and swig-php54 subports

[MacPorts]

#34618: swig: add swig-php53 and swig-php54 subports
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  Reporter:  ryandesign@…  |      Owner:  michaelld@…
      Type:  enhancement   |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.1.1
Resolution:                |   Keywords:
      Port:  swig          |
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Comment (by michaelld@…):

 So here's what I'm proposing doing:

 1) Set swig-php5 as replaced_by swig-php.

 2) Add +php5X variants to swig-php (similar to +gcc4X for gcj).

 The above seems to make sense to me; and, they install correctly in my
 testing -- but, I do not otherwise use these ports so I cannot comment as
 to how well they work once installed. I'll push these changes once I have
 confirmation that they make sense, or a description of what -does- make
 sense.

-- 
Ticket URL: <https://trac.macports.org/ticket/34618#comment:4>
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