I have installed gcc4.7 (and hopefully the related version of stdlibc++ with it) through MacPorts, and I now need to enable it so that I can use it within Xcode (which is currently version 4.5). Does anybody know how to do that?
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you can use "select" command of MacPorts.
port select --list gcc
will show the list of installed gcc(s).
sudo port select gcc
will activate installed gcc. should be specified one of that list. (ex. mp-gcc47
datsuns
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look at [this](http://stackoverflow.com/a/8372496/1055604) answer for specific commandline output... – user1055604 Jan 05 '13 at 21:10
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As far as I can tell, this does not update Xcode to use the macports gcc – David Jan 23 '13 at 21:29