[MacPorts] #38907: Resolving libjpeg-turbo + jpeg Port conflicts

[MacPorts]

#38907: Resolving libjpeg-turbo + jpeg Port conflicts
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  Reporter:  davidfavor     |      Owner:  larryv
      Type:  enhancement    |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  libjpeg-turbo  |
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Comment (by ryandesign):

 It's not about testing, it's just that libjpeg and libjpeg-turbo are not
 binary compatible so they can't be listed as being so via a `path:`-style
 dependency. (It's the same problem with have with openssl: we list openssl
 and libressl as binary compatible by using a `path:`-style dep; they're
 not; we shouldn't do that.)

 comment:7 suggests we should switch to libjpeg-turbo as our primary jpeg,
 making libjpeg9 an option only for ports that need the new features (and
 naturally moving jpeg9's files so that they don't conflict with libjpeg-
 turbo's.) We could certainly do that. I'm not going to work on that right
 now. If somebody else wants to, that's great.

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Ticket URL: <https://trac.macports.org/ticket/38907#comment:20>
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