[MacPorts] #68207: unison +gtk only has a build dependency on port:lablgtk2!

[MacPorts]

#68207: unison +gtk only has a build dependency on port:lablgtk2!
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 Reporter:  RJVB         |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:
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 https://github.com/macports/macports-
 ports/blob/6046323cc71b75c47b2d42c8cedb0122e2f17dba/net/unison/Portfile#L60

 I just tried to turn that into a depends_build locally, after seeing that
 the unison exec only links to "C" shared libraries. Indeed, the programme
 works perfectly find after I deactivate all ocaml dependencies (lablgtk2,
 ocaml-findlib and ocaml itself).

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Ticket URL: <https://trac.macports.org/ticket/68207>
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