[MacPorts] #48542: putty @0.63 +gui build failure: 'gdk/gdkx.h' file not found

[MacPorts]

#48542: putty @0.63 +gui build failure: 'gdk/gdkx.h' file not found
---------------------------+--------------------------------
  Reporter:  gunnlaugur@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.3
Resolution:                |   Keywords:
      Port:  putty         |
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Comment (by gunnlaugur@…):

 OK, this is really because I have `gdk2 +quartz` installed, not the `x11`
 variant, and putty's dependency on `gtk2` is really a dependency on `gtk2
 +x11`. Same problem for another MacPorts package at
 https://trac.macports.org/ticket/42787 and same problem for putty in
 Homebrew at https://github.com/Homebrew/homebrew/issues/40951

 I'm guessing there is no way to declare a dependency on a specific variant
 of a port? Tried `depends_lib-append port:gtk2+x11` but it wasn't having
 it.

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Ticket URL: <https://trac.macports.org/ticket/48542#comment:1>
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