[MacPorts] #58418: qt5-qtcreator fails to build on Mojave with Xcode-10.2.1

[MacPorts]

#58418: qt5-qtcreator fails to build on Mojave with Xcode-10.2.1
----------------------------+---------------------------------
  Reporter:  mouse07410     |      Owner:  MarcusCalhoun-Lopez
      Type:  defect         |     Status:  reopened
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  qt5-qtcreator  |
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Comment (by mouse07410):

 Thanks!

 > {{{sudo rm -rf *.*}}}

 Do I need to remove **all** the existing builds? Or can I constrain myself
 to removing only specific ones (like qt5-qtcreator)?

 By "try again" you mean {{{sudo port install qt5-qtcreator}}}, or
 something else? Sorry for being so pedantic, but I want to make sure I'll
 be doing the right thing. ;-)

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Ticket URL: <https://trac.macports.org/ticket/58418#comment:20>
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