How to update Xcode to install "UNIX Development Support" ?

Question

I installed Xcode a long time ago.

Apparently I didn't check back then the "UNIX Developemtn Support" checkbox.

Now I want to have them bu when I click on the installation this is what appears:

The UNIX Development Support check box is disabled

Q. ¿How can I install the UNIX Development Support? Is there a way to run some script that creates all the needed links from /Developer/ to /usr/bin ?

Thanks in advance.

Answer 1

You should uninstall and then re-install the developer tools.

To uninstall the tools, run the following command in Terminal:

sudo /Developer/Library/uninstall-devtools --mode=all

Answer 2

Finally.

I had to download from http://developer.apple.com the latest version of Xcode ( 3.2 ) along with the iPhone SDK that I won't use in the near feature.

This time the "UNIX Development Support" was enabled:

So now I can compile from the command line!