CyanogenMod or AOSP: Compile a single project

I am trying to MAKE / Compile a single AOSP project from the repository - specifically packages/apps/Email.

Does anyone know how to do it? (I have no problem compiling the entire开发者_如何学运维 repository, but I really would like to be able to compile a single project as well).

If your environment has been configured by build/envsetup.sh in your android tree, you can run mmm [project_path] to build only a specific subproject. (This will require that you've built its dependencies from the tree before.)

As CommonsWare pointed out, if you're trying to build the Email app using the SDK there's more porting work to do.

make Email also works (and generally make [appname] for all apps)