[MacPorts] #60510: cctools add llvm10 variant

[MacPorts]

#60510: cctools add llvm10 variant
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 Reporter:  blair   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  cctools
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 Can a llvm10 variant be added to cctools. Adding this would allow me to
 remove llvm90 from my Mac as the other ports I use have llvm10 variants.

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Ticket URL: <https://trac.macports.org/ticket/60510>
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