[MacPorts] #62784: mysql57 @5.7.34: version:1:1: error: expected unqualified-id

[MacPorts]

#62784: mysql57 @5.7.34: version:1:1: error: expected unqualified-id
--------------------------+--------------------
  Reporter:  josephsacco  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.4
Resolution:               |   Keywords:  bigsur
      Port:  mysql57      |
--------------------------+--------------------

Comment (by kencu):

 Finally, this will show up in xcode builds now, and be fixed broadly.

 up to now, only 10.6.8 and other systems forced to clang-9.0 were seeing
 this error all the time.

 We have fixed it properly here and there, or sometimes (like some of the
 mysql ports) just forced it build with an older macports-clang (5-7) that
 doesn't have this <version> header that causes the conflict.

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Ticket URL: <https://trac.macports.org/ticket/62784#comment:8>
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