[MacPorts] #62920: saga @7.9.0_1: use a path-style dependency for unixODBC (if possible)

[MacPorts]

#62920: saga @7.9.0_1: use a path-style dependency for unixODBC (if possible)
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 Reporter:  cooljeanius  |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.6.4
 Keywords:               |       Port:  saga
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 Currently saga has an unconditional dependency on unixODBC. Unfortunately,
 unixODBC conflicts with libiodbc, which I need to have installed for the
 KDE ports. If it's possible, it'd be nice for saga to use a path-style
 dependency so that it can use either unixODBC or libiodbc, in order to get
 around this conflict.

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Ticket URL: <https://trac.macports.org/ticket/62920>
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