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Is there a way to tell whether I still need any MacPort ports? (besides deleting them of course)

Many port I installed a couple of years back and in the meantime I've gone to SnowLeopard...

Also, in some of my gem installs I'm seeing things like "ld: in /opt/local/lib/libz.1.dylib, file is not of required architecture"...

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migrated from stackoverflow.com Feb 27 '10 at 10:45

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up vote 4 down vote accepted

If you installed Macports under Leopard then upgraded the OS I would suggest that you delete Macports as Macports does not support upgradinging the OS see Macports migration notes

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You can use the port dependents command to check to see which ports depend on a particular port. For example, $ port dependents $PORT will show a list of all ports that require $PORT.

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