+ tool(0),
+ state(INIT),
+ primary_target(0)
+{
+ builder.get_build_graph().add_target(this);
+}
+
+void Target::add_dependency(Target &dep)
+{
+ if(&dep==this)
+ throw invalid_argument("Target::add_depend");
+ depends.push_back(&dep);
+ if(state>PREPARING)
+ dep.signal_bubble_rebuild.connect(sigc::mem_fun(this, &Target::check_rebuild));
+}
+
+void Target::add_transitive_dependency(Target &dep)
+{
+ if(&dep==this)
+ throw invalid_argument("Target::add_transitive_dependency");
+ trans_depends.push_back(&dep);
+}
+
+void Target::add_side_effect(Target &se)