+
+ /** Creates an install target for a target created by this tool. Can return
+ null if the tool does not want to handle installing in a special way. */
+ virtual Target *create_install(Target &) const { return 0; }
+
+ virtual std::string create_build_signature(const BuildInfo &) const { return std::string(); }
+
+ /** Invokes the tool to build a target. This should not be called directly;
+ use Target::build() instead. */