[MacPorts] #42378: Upgrade icon programming language to 9.5.1 and check for X11 existence

[MacPorts]

#42378: Upgrade icon programming language  to 9.5.1 and check for X11 existence
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  Reporter:  t.tensi@…    |      Owner:  michael.grunewald@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  icon         |
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Comment (by t.tensi@…):

 Dear all,

 I have added the portfile diff as requested by Frank:
 > ... Please do your 2nd option: "9.5.1 plus the variant "x11" with a
 default of +x11 and no checking"

 Best regards,

 Thomas

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Ticket URL: <https://trac.macports.org/ticket/42378#comment:13>
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