[MacPorts] #62183: ruby30 @3.0.0: error: use of undeclared identifier 'fmt'; did you mean 'fma'?

[MacPorts]

#62183: ruby30 @3.0.0: error: use of undeclared identifier 'fmt'; did you mean
'fma'?
--------------------------+----------------------
  Reporter:  simon-dedeo  |      Owner:  kimuraw
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.4
Resolution:               |   Keywords:  sierra
      Port:  ruby30       |
--------------------------+----------------------
Changes (by simon-dedeo):

 * Attachment "main.2.log" added.

 re-running with updated XCode, and no weird symlinks; new version fails
 again

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Ticket URL: <https://trac.macports.org/ticket/62183>
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