[MacPorts] #39450: libcaca @0.99.beta18: Make building caca-sharp into a variant

[MacPorts]

#39450: libcaca @0.99.beta18: Make building caca-sharp into a variant
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  Reporter:  egall@…  |      Owner:  macports-tickets@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.1.3
Resolution:           |   Keywords:
      Port:  libcaca  |
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Comment (by egall@…):

 Replying to [comment:1 ryandesign@…]:
 > A subport would be better than a variant because other ports could then
 declare a dependency on it.

 Yeah, whatever works. I just suggested a variant because I find those
 easier to write, but if someone wants to write a sub-port, I'd appreciate
 that, too...

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Ticket URL: <https://trac.macports.org/ticket/39450#comment:2>
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