[MacPorts] #59089: compiler_blacklist_versions portgroup: don't know how to determine build number of compiler "/opt/local/bin/gcc-apple-4.2" (was: [macports] unable to open port compiler detection issue)

[MacPorts]

#59089: compiler_blacklist_versions portgroup: don't know how to determine build
number of compiler "/opt/local/bin/gcc-apple-4.2"
-----------------------+---------------------
  Reporter:  rmottola  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  leopard
      Port:            |
-----------------------+---------------------
Changes (by ryandesign):

 * keywords:  macports leopard => leopard


Comment:

 The error is coming from the compiler_blacklist_versions portgroup, but
 that portgroup is used by many ports. Maybe a port is using it improperly.
 If you use the `-d` flag instead of the `-v` flag, we might get enough
 context to learn which port triggered this error.

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Ticket URL: <https://trac.macports.org/ticket/59089#comment:1>
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