[MacPorts] #39902: "Staging bison into destroot" throws error while "upgrade outdated"

[MacPorts]

#39902: "Staging bison into destroot" throws error while "upgrade outdated"
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  Reporter:  sykorap@…  |      Owner:  macports-tickets@…
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.2.0
Resolution:             |   Keywords:  bison upgrade outdated
      Port:             |
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Comment (by piergiuseppe.fogli@…):

 Same error here after port selfupdate to 2.2.0 release.[[BR]]
 The error message "xinstall usage" suggest a problem with the command line
 but I can't find the xinstall program installed,[[BR]]
 even though the source file is installed in
 /opt/local//var/macports/sources/rsync.macports.org/release/tarballs/base/src/pextlib1.0/
 .

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Ticket URL: <https://trac.macports.org/ticket/39902#comment:1>
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