{ "foo":
  { "type": ["@", "rules", "CC", "library"]
  , "name": ["foo"]
  , "shared": ["yes"]
  , "hdrs": ["foo.hpp"]
  , "srcs": ["foo.cpp"]
  , "deps": ["bar"]
  }
, "bar":
  { "type": ["@", "rules", "CC", "library"]
  , "name": ["bar"]
  , "shared": ["yes"]
  , "hdrs": ["bar.hpp"]
  , "srcs": ["bar.cpp"]
  , "deps": ["baz"]
  }
, "baz":
  { "type": ["@", "rules", "CC", "library"]
  , "name": ["baz"]
  , "hdrs": ["baz.hpp"]
  , "srcs": ["baz.cpp"]
  , "deps": ["qux"]
  }
, "qux":
  { "type": ["@", "rules", "CC", "library"]
  , "name": ["qux"]
  , "hdrs": ["qux.hpp"]
  , "srcs": ["qux.cpp"]
  }
, "main":
  { "type": ["@", "rules", "CC", "binary"]
  , "name": ["main"]
  , "srcs": ["main.cpp"]
  , "private-deps": ["foo", "qux"]
  }
, "main-with-deps":
  {"type": ["@", "rules", "CC", "install-with-deps"], "targets": ["main"]}
}