[MacPorts] #43618: ipe update to 7.1.5

[MacPorts]

#43618: ipe update to 7.1.5
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  Reporter:  m.thon@…  |      Owner:  macports-tickets@…
      Type:  update    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.2.1
Resolution:            |   Keywords:  maintainer haspatch
      Port:  ipe       |
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Comment (by m.thon@…):

 Replying to [comment:1 ryandesign@…]:
 > ... you could install libjpeg-turbo instead of jpeg and all software
 that uses jpeg would work correctly.

 I don't really know either libraries well. But I think that is basically
 true. However, it does not go the other way round: libjpeg-turbo provides
 an additional more convenient API, i.e., libjpeg-turbo supports the
 standard libjpeg API and its own API. Ipe now makes use of the libjpeg-
 turbo API, so unpatched it requires libjpeg-turbo and not libjpeg. With
 the patch it can use either.

 Unfortunately, several ports (including ipe dependencies) seem to require
 jpeg. At least I couldn't figure out how to replace jpeg by libjpeg-turbo
 in my MacPorts.

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Ticket URL: <https://trac.macports.org/ticket/43618#comment:2>
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