How to compile mod_wsgi, mod_fastcgi, etc on Mountain Lion (Mavericks) by fixing `apxs:Error: Command failed with rc=65536`?

I solved this problem while writting question:

For some reason /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.8.xctoolchain/ folder (containing Xcode Command Line Tools) is here: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain

To fix the problem:

$ sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/ /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.8.xctoolchain

Greg Bair suggestion for Mavericks:

$ sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/ /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.9.xctoolchain

This creates symlink to the right folder.

Ran into the same problem, however creating the symlink did not solve it for me. What did work was adding the flag --disable-framework to the ./configure command. See the gist for more details.