[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 kencu):

 Replying to [comment:75 michaelld]:

 > > ... and have the code stop adding {{{-L/opt/local/lib}}} to that path,
 which seems both unnecessary and troublesome.
 >
 > This is actually OK, it turns out.

 Marcus found out that setting this while using {{{DYLD_LIBRARY_PATH}}}
 overrides system frameworks by making them use newer macports libraries
 like libjpeg, and so all the links fail. That's why he suggested using
 FALLBACK, which has it's own problems.

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Ticket URL: <https://trac.macports.org/ticket/58574#comment:77>
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