There were major problems early in the DP cycle, but they resolved themselves as of DP4. However, you do need to have the standalone command-line tools installed to populate /usr/include: it's empty otherwise, and Xcode doesn't provide a CLT package anymore (edit: not entirely accurate, see comments below).

Once /usr/include is populated, you shouldn't have much of a problem with most Homebrew packages.

> Xcode doesn't provide a CLT package anymore.

It does, but it doesn't install them under /usr anymore (unless you tell it to by calling `xcode-select --install`). See the homebrew discussion on the subject: https://github.com/mxcl/homebrew/issues/20427

You're right: Xcode includes its own set of CLTs namespaced under /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/, but that's useless for anything expecting FHS.

What xcode-select --install will do is the same thing as downloading and installing the standalone CLT package manually, but in a manner similar to how X11 used to be distributed: OS X will request permission to download the standalone CLT package and install it: http://i.imgur.com/O1CIGCP.png

It also doesn't currently work (it'll error out saying it's not available on the Software Update Server). Assuming that's fixed by release, it will save a trip to the web browser to download it manually.

> It also doesn't currently work (it'll error out saying it's not available on the Software Update Server)

For what it's worth, It was previously working in earlier betas

Thanks!

You can now have the developer tools installed without XCode by using "xcode-select --install".