[MacPorts] #49308: qgis: request to set gdal dependency to +postgresql94 variant (was: qgis: 139229 - request to set gdal dependency to +postgresql94 variant)

[MacPorts]

#49308: qgis: request to set gdal dependency to +postgresql94 variant
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  Reporter:  garethsimons@…  |      Owner:  vince@…
      Type:  enhancement     |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.3.4
Resolution:                  |   Keywords:
      Port:  qgis gdal       |
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Changes (by ryandesign@…):

 * owner:  macports-tickets@… => vince@…
 * port:  qgis / 139229 => qgis gdal


Comment:

 MacPorts doesn't have the ability for one port to declare a dependency on
 a ''variant'' of another port. That's #126. It only has the ability to
 declare a dependency on another port.

 gdal has many database variants. It might not be appropriate for us to
 make the postgresql94 variant appear more important than the others by
 turning it on by default.

 However, the qgis port could either require the postgresql94 variant of
 gdal, using the require_active_variants proc in the active_variants 1.1
 portgroup, or if it's more of a recommendation and not a requirement, the
 qgis port could display notes to the user if gdal isn't installed with
 that variant. (There should be some helper functions in active_variants
 1.1 that can be used to determine what variants the other port is
 installed with.)

-- 
Ticket URL: <https://trac.macports.org/ticket/49308#comment:1>
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