This is the way I like it: - Only call fpc on hwengine.pas, let compiler rule the dependencies - Make hwengine.pas depend on all other source files, so 'make' always calls fpc

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