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

[MacPorts]

#38907: Resolving libjpeg-turbo + jpeg Port conflicts
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 Reporter:  david@…  |      Owner:  macports-tickets@…
     Type:  request  |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.1.3
 Keywords:           |       Port:  ffmpeg
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 Since libjpeg-turbo released there are many Ports that could benefit from
 it's use, except dependencies in these Ports are for the jpeg Port which
 conflicts with libjpeg-turbo.

 Currently there appears to be no way to specify an "OR dependency"...
 like...

 depends_lib port:jpeg || port:libjpeg-turbo

 So is the correct way to fix this to change...

 depends_lib port:jpeg to...

 depends_lib path:lib/libjpeg.dylib

 which would then pass the dependency check for any Port that
 installed this library.

 Let me know if this is the correct fix.

 Thanks.

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