Unable to get MacPort functionality after installing Xcode 4.3

Question

I am having trouble getting MacPorts to function properly. I just installed OSX Lion 10.7.3 I downloaded and installed MacPorts first, and then after reading the requirements, I

Answer 1

Please see the MacPorts migration instructions for Xcode 4.3.

The instructions are pretty involved. You need to run xcode-select to set a new tools path, update developer_dir in macports.conf (as described by Henk Poley), re-install MacPorts (ouch), and finally uninstall and re-install all of your ports (double ouch).

Edit: libpvx still wouldn't install after the above. Two extra steps were required:

1. sudo ln -s /Developer /
2. sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs /SDKs

YMMV if you have different ports installed!