[MacPorts] #49780: provide an interface for ports to depend on Qt5 components

[MacPorts]

#49780: provide an interface for ports to depend on Qt5 components
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  Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  qt5/qt5-kde  |
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Comment (by ctreleaven@…):

 Can we back up a bit?  I'm only familiar with Qt to the extent that the
 main port I support (mythtv) relies on Qt.  What are these "individual Qt
 components" that you wish to make optional?  Do you have a list?  What is
 the motivation for NOT including them?  I think there are two
 considerations that point toward including all non-conflicting components
 in a default installation of Qt:

 1) MacPorts philosophy has generally been to include all reasonable
 components unless such inclusion massively inflates the resulting port
 with software that is not required by most users.  Is that the case with
 Qt5?  How much bigger is the pre-compiled archive for the mostly-inclusive
 package v. the base package you've proposed.

 2) How is the Qt project packaging Qt5?  For Qt4, the download from their
 site was pretty much all-encompassing.  If Qt5 is the same, what is the
 compelling reason for MacPorts to Qt5 in bits and pieces?

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Ticket URL: <https://trac.macports.org/ticket/49780#comment:2>
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