automated the build process some more, users must add the android ndk, sdk and fpc dir to their $PATH and cmake will do the rest, I still need a solution for the sdl dir. Subrepo's perhaps?

foreach(dir "Fonts" "Forts" "Graphics" "Locale" "Maps" "Music" "Sounds" "Themes" "Missions" "Names" "misc" "Scripts")
  add_subdirectory(${dir})
endforeach(dir)