[MacPorts] #55119: Error Staging llvm-3.9 into destroot

[MacPorts]

#55119: Error Staging llvm-3.9 into destroot
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 Reporter:  papachoco         |      Owner:
     Type:  defect            |     Status:  new
 Priority:  Normal            |  Milestone:
Component:  ports             |    Version:  2.4.2
 Keywords:  Staging destroot  |       Port:  lvm-3.9
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 I get the following error while Staging llvm-3.9 into destroot

 Error: Failed to destroot llvm-3.9: missing operator at _ at _
 in expression "...n" && ${xcodeversion} _ at _4.6] < 0"

 Xcode Version 9.0.1 (9A1004)
 macOS Sierra 10.12.6

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Ticket URL: <https://trac.macports.org/ticket/55119>
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