[MacPorts] #34458: netcdf: Remove szip dependency

[MacPorts]

#34458: netcdf: Remove szip dependency
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 Reporter:  eborisch@…             |       Owner:  macports-tickets@…                   
     Type:  enhancement            |      Status:  new                                  
 Priority:  Normal                 |   Milestone:                                       
Component:  ports                  |     Version:  2.1.0                                
 Keywords:                         |        Port:  netcdf                               
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Comment(by takeshi@…):

 I believe szip is almost a must with hdf5. I think I was told to make szip
 default in the past for user's convenience. I'm going to instruct users to
 add +szip with hdf5-18. hdf5-18 +szip is not redistributable, is it?

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Ticket URL: <https://trac.macports.org/ticket/34458#comment:1>
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