[MacPorts] #53331: opencv @3.2.0: build failure when using ccache

[MacPorts]

#53331: opencv @3.2.0: build failure when using ccache
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  stromnov
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.3.99
 Keywords:              |       Port:  opencv
------------------------+----------------------
 Building opencv @3.2.0 fails when `configureccache yes` is in
 macports.conf (and the ccache port is installed):

 {{{
 ccache: error: Failed to create temporary file for
 /opt/local/var/macports/build/.ccache/tmp/tmp.cpp_stderr: Operation not
 permitted
 }}}

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Ticket URL: <https://trac.macports.org/ticket/53331>
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