* atk/atkaction.c, atk/atkcomponent.c, atk/atkeditabletext.c,
atk/atkhyperlink.c, atk/atkhypertext.c, atk/atkimage.c,
atk/atkregistry.c, atk/atkselection.c, atk/atktable.c,
atk/atktext.c, atk/atkutil.c, atk/atkvalue.c
Fix warnings generated by Sun FORTE compiler