Disastrous port update from Lion to Mountain Lion

[JAyenGreen (Jeff Greenberg)]

I upgraded from Lion to Mountain Lion (Macbook Pro) with no issues. Then installed Xcode 5, which already had the command line tools set in preferences.

I then did:

sudo port -v upgrade outdated

It commented that the file list was outdated and that I might be better to try selfupdate...but continued on its way with the upgrade. The upgrade failed due to a build file not being found, so heeding the suggestion, I tried

sudo port -v selfupdate

The tail end of that is:

checking whether the C compiler works... no configure: error: in `/opt/local/var/macports/sources/rsync.macports.org/release/tarballs/base': configure: error: C compiler cannot create executables See `config.log' for more details Command failed: cd /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/base && CC=/usr/bin/cc ./configure --prefix=/opt/local --with-tclpackage=/Library/Tcl --with-install-user=root --with-install-group=admin --with-directory-mode=0755 --enable-readline && make && make install SELFUPDATING=1 Exit code: 77 Error: /opt/local/bin/port: port selfupdate failed: Error installing new MacPorts base: command execution failed

At this point I have no clue what state I'm in or what to do about it.