[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 manulcaux):

 Here is the list I have in my terminal when the warning appeared :

 --->  Attempting to fetch xorg-
 libice-1.0.10_0.darwin_18.x86_64.tbz2.rmd160 from
 http://nue.de.packages.macports.org/xorg-libice
 --->  Installing xorg-libice @1.0.10_0
 --->  Cleaning xorg-libice
 --->  Computing dependencies for xorg-libice
 --->  Deactivating xorg-libice @1.0.9_1
 --->  Cleaning xorg-libice
 --->  Activating xorg-libice @1.0.10_0
 --->  Cleaning xorg-libice
 Warning: The macOS 10.14 SDK does not appear to be installed. Ports may
 not build correctly.
 Warning: You can install it as part of the Xcode Command Line Tools
 package by running `xcode-select --install'.

 Just after it was trying to install ds9, it is why I thought the problem
 was for ds9, but may be it is better on xorg-libice

 I will open another ticket for the ds9 problem

-- 
Ticket URL: <https://trac.macports.org/ticket/59837#comment:4>
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