[MacPorts] #36612: path:-style dep allows non-macports file inside macports prefix

[MacPorts]

#36612: path:-style dep allows non-macports file inside macports prefix
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  Reporter:  snc@…   |      Owner:  macports-tickets@…
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.1.99
Resolution:          |   Keywords:
      Port:          |
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Comment (by ryandesign@…):

 Replying to [ticket:36612 snc@…]:
 > When MacPorts encounters a path:-style dependency, it will allow a non-
 MacPorts file that is within the MacPorts prefix to satisfy the
 installation. This doesn't make sense, since MacPorts should be master of
 its own directories. Logs are attached showing that a package is not
 installed, yet its files are found and used inside the MacPorts prefix.
 >
 > This most prevalent cause of this problem is someone installing a
 dmg/pkg from MacPorts, which will install files right into the MacPorts
 prefix by default.

 #36482 was another recent case of this.

 > MacPorts might also consider cowardly failing if there's an attempt to
 generate a dmg/pkg using the default prefix.

 That would prevent us from creating MacPorts releases. :) A warning about
 this would be good though. Or an error, and a flag needed to override it.
 Or, special-case the "MacPorts" port. In any case this should be a
 separate ticket.

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Ticket URL: <https://trac.macports.org/ticket/36612#comment:1>
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