const TargetMap &get_targets() const { return targets; }
/** Tries to locate a header based on location of including file and include
path. Considers known targets as well as existing files. If a matching
target is not found but a file exists, a new SystemHeader target will be
created and returned. */
const TargetMap &get_targets() const { return targets; }
/** Tries to locate a header based on location of including file and include
path. Considers known targets as well as existing files. If a matching
target is not found but a file exists, a new SystemHeader target will be
created and returned. */