[MacPorts] #55680: Trace mode fails when ccache is used

[MacPorts]

#55680: Trace mode fails when ccache is used
------------------------+-------------------
 Reporter:  ryandesign  |      Owner:
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  base        |    Version:  2.4.2
 Keywords:              |       Port:
------------------------+-------------------
 I have `configureccache yes` in my macports.conf. If I try to build any
 port that honors that setting, the configure phase fails with:

 {{{
 ccache: command not found
 }}}

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Ticket URL: <https://trac.macports.org/ticket/55680>
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