[MacPorts] #59837: macOS 10.14 SDK does not appear to be installed even though Command Line Tools are installed

[MacPorts]

#59837: macOS 10.14 SDK does not appear to be installed even though Command Line
Tools are installed
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  Reporter:  manulcaux  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  base       |    Version:
Resolution:             |   Keywords:
      Port:             |
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Comment (by kencu):

 You don't want to do that. That will give you Xcode 11.x and the Command
 Line Tools 10.x. and the mismatch would be a disaster.

 At most, you might need the MacOSX10.14.sdk from the CommandLineTools
 10.x.

 This is a serious PITA, and that is why we've talking about automating it
 somehow, someday, somewhere ... sounds like a song ;>

 Hmm. At this point, you should probably copy the MacOSX10.14.sdk from the
 `/Library/Developer` folder, then delete the command line tools and start
 over. Install the latest 11.x command line tools, and if there is no
 MacOSX10.14.sdk in there, copy in your saved copy of it.

-- 
Ticket URL: <https://trac.macports.org/ticket/59837#comment:11>
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