[MacPorts] #55627: cg-toolkit @3.1.2012.04_1 tries to install files into /usr, which SIP prevents (was: Processing of port cg-toolkit failed)

[MacPorts]

#55627: cg-toolkit @3.1.2012.04_1 tries to install files into /usr, which SIP
prevents
-------------------------+----------------------
  Reporter:  ierofant    |      Owner:  blair
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.4.2
Resolution:              |   Keywords:
      Port:  cg-toolkit  |
-------------------------+----------------------

Comment (by ryandesign):

 It's not permitted for ports (or anyone other than Apple) to install into
 /usr. System Integrity Protection, a feature of El Capitan and later,
 prevents modification of such locations by third party software such as
 MacPorts. The port must be modified to install its files elsewhere, such
 as `$prefix`.

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Ticket URL: <https://trac.macports.org/ticket/55627#comment:4>
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