The macosxhints Forums - *If you want to use Fink with Apple X11*: "If you want to use 'Fink' to install applications to use with Apple X11, as it is not clearly explained at Apple X11 web page, it's very important you do the following:

1.-Make sure you download and install 'BOTH', X11 Public Beta (41.4 MB) and the Mac OS X Public Beta SDK. (3.8MB)

You can find links to download both packages in the same page.

If you can't find the download link for the Mac OS X Public Beta SDK (3.8MB), just look at the bottom of the page and you will see in the right corner a box titled 'Developer's Kit'

Do not download the 'common toolkits' from OpenDarwin, they will likely interact poorly with Fink's installation.


Apple X11 for MacOS X:

http://www.apple.com/macosx/x11/"