[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 mascguy):

 Rather than deal with changing all dependent ports, why don't we convert
 mozjpeg and libjpeg-turbo into subports of jpeg? And then have jpeg have a
 dependency on the default subport (something like jpeg-default), but
 allowing the user to select 'libjpeg-turbo' via some mechanism, like a
 variant?

 I'm thinking in terms of how we handle 'ld64'.

 That would eliminate the need to change any downstream ports, right?

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Ticket URL: <https://trac.macports.org/ticket/38907#comment:37>
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