void attrset_add (struct attrset *, struct attribute *);
void attrset_delete (struct attrset *, const char *);
void attrset_clear (struct attrset *);
void attrset_add (struct attrset *, struct attribute *);
void attrset_delete (struct attrset *, const char *);
void attrset_clear (struct attrset *);