[MacPorts] #58574: poppler upgrade fails if older poppler is installed

[MacPorts]

#58574: poppler upgrade fails if older poppler is installed
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  Reporter:  RobK88   |      Owner:  dbevans
      Type:  defect   |     Status:  reopened
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.5.4
Resolution:           |   Keywords:
      Port:  poppler  |
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Comment (by mascguy):

 Replying to [comment:69 ryandesign]:
 > He provided a proposal that deactivates poppler before the build if it's
 active. I agree that's possible. He did not provide a way to reactivate
 the old port if the current port should fail to build, which isn't so
 easy, since the moment the build fails, the port no longer has control,
 control is handed over to base, so the port does not get an opportunity to
 reactivate the old port.

 Ah, fair enough.

 Okay, so here's the million-dollar question: Would there be interest in
 enhancing the MacPorts base, to allow more customized error handling via
 the port file? (Assuming the enhancements were contributed by someone...
 like myself.)

 The idea being that, while it would certainly be useful in this particular
 case, it could also be useful for other things down the road.

 I realize more discussion would be warranted via the mailing list,
 including a more formal proposal. But just wanted to ask that question
 before going further...

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Ticket URL: <https://trac.macports.org/ticket/58574#comment:70>
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