[MacPorts] #59344: Error when compiling gcc9 with xcode11.1

[MacPorts]

#59344: Error when compiling gcc9 with xcode11.1
-----------------------+-----------------------------
  Reporter:  houzeaux  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  gcc9, xcode11.1
      Port:            |
-----------------------+-----------------------------

Comment (by cjones051073):

 The build is not clean, the log has multiple instances of

 {{{
 :error:configure Please forcibly deactivate libunwind-headers, e.g. by
 running:
 :error:configure     sudo port -f deactivate libunwind-headers
 :error:configure Then try again. You can reactivate libunwind-headers
 again later.
 }}}

 please run

 {{{
   sudo port sync
   sudo port -f deactivate libunwind-headers
   sudo port clean libgcc9
   sudo port install libgcc9
 }}}

 and post the log from that last step.

-- 
Ticket URL: <https://trac.macports.org/ticket/59344#comment:1>
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