[MacPorts] #38433: libiodbc @3.52.8: Make the gui into a variant

[MacPorts]

#38433: libiodbc @3.52.8: Make the gui into a variant
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  Reporter:  egall@…      |      Owner:  snc@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  libiodbc     |
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Comment (by egall@…):

 I have a portfile for libiodbc in my local portfile repo that does the
 variant method (because I find variants easier to write):
 https://github.com/cooljeanius/LocalPorts/blob/master/devel/libiodbc/Portfile

 I'm not actually attaching it to this ticket here, though, because I made
 some other irrelevant changes to it, too, and those don't necessarily need
 to get mixed in.

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Ticket URL: <https://trac.macports.org/ticket/38433#comment:3>
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