[MacPorts] #39864: port installation fails during extraction after update

[MacPorts]

#39864: port installation fails during extraction after update
-------------------------+--------------------------------
  Reporter:  rharwood@…  |      Owner:  macports-tickets@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.2.0
Resolution:              |   Keywords:
      Port:              |
-------------------------+--------------------------------

Comment (by ryandesign@…):

 So the problem is:

 {{{
 :debug:extract Executing command line:  cd
 "$prefix/var/macports/build/_prefix_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_autoconf/autoconf/work"
 && $prefix/bin/xz -dc
 '$prefix/var/macports/distfiles/autoconf/autoconf-2.69.tar.xz' |
 /usr/bin/gnutar --no-same-owner -xf -
 :info:extract /usr/bin/gnutar: autoconf-2.69: Cannot mkdir: Operation not
 permitted
 }}}

 Somehow $prefix isn't getting expanded. Any idea why that is? Have you
 made any unusual changes to your macports.conf? What's the value of prefix
 in macports.conf?

-- 
Ticket URL: <https://trac.macports.org/ticket/39864#comment:1>
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