[MacPorts] #47443: Reducing the dependencies of ImageMagick (djvulibre)

[MacPorts]

#47443: Reducing the dependencies of ImageMagick (djvulibre)
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  Reporter:  ocroquette@…  |      Owner:  ryandesign@…
      Type:  enhancement   |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.3
Resolution:                |   Keywords:
      Port:  ImageMagick   |
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Comment (by mschamschula@…):

 Replying to [comment:8 ryandesign@…]:
 > Replying to [comment:6 mschamschula@…]:
 > > As it depends on the rsvg variant, which in turn depends on the pango
 variant, the variants now use the "requires" syntax to note this fact.
 >
 > How do you know that djvulibre support in ImageMagick requires the rsvg
 variant? How do you know the rsvg variant requires the pango variant?

 I found out the hard way, while trying to build ImageMagick under El Cap,
 where it currently is impossible to build pango due to some system header
 issues.

 In other words:

 * If you install the rsvg variant, you need pango as a dependency, so why
 not install the variant?
 * If you install the djvulibre variant, you need both pango and rsvg  as
 dependencies, so why not install those variants?

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Ticket URL: <https://trac.macports.org/ticket/47443#comment:9>
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