To install SDL for native development:
    make native

To install SDL for cross-compiling development:
    make cross

Look at the example programs in ./test, and check out online documentation:
    http://wiki.libsdl.org/

Join the SDL developer mailing list if you want to join the community:
    http://www.libsdl.org/mailing-list.php

That's it!
Sam Lantinga <slouken@libsdl.org>