Xcode fixes after upgrading to Lion

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
35/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
macos, python
Domain
documentation

Research direction

Start with the Python installation instructions and compare them with the linked MacPorts Xcode Lion guide and Problem Hotlist. Document or link the command-line tools step and the xcode-select fix, and clarify whether a Snow Leopard-to-Lion upgrade note is needed.

Written by the indexing model from the issue text.

Description

I know the instructions say that installing Xcode from the App store is "bleeding edge". I would like to suggest that a couple of fixes that I needed to do to Macports, be listed or linked from these instructions to save others' time.

The first is the bit about having to start up Xcode and install the command-line tools, as described here:
http://guide.macports.org/#installing.xcode.lion

After this, I kept getting messages about "your gcc (3.2.6) is too old". I had to Google the error message to find the fix, on the top of the Problem Hotlist for Macports at https://trac.macports.org/wiki/ProblemHotlist :
sudo xcode-select -switch /Applications/Xcode.app

Maybe the thing to do, is to put the links to these two bits in the Python installation instructions? Maybe there ought to be a little section on what to do if you installed everything on Snow Leopard and have just upgraded to Lion?

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