[MacPorts] #39046: zsh-5.0.2 fails with clang

[MacPorts]

#39046: zsh-5.0.2 fails with clang
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  Reporter:  ionic@…  |      Owner:  larryv@…
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.1.3
Resolution:           |   Keywords:  haspatch
      Port:  zsh      |
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Comment (by ionic@…):

 I can confirm zsh as such is building fine with clang, but not with
 ccache+clang.

 It's ccache messing up the source fed into clang.

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Ticket URL: <https://trac.macports.org/ticket/39046#comment:3>
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