I try to make uid file with uil but i 've got an error : yacc.y:256:NO OP yacc.y:243:NO OP lookup XmLabel = index of 28 my label.uil was : module ExempleLabel names = case_sensitive object hello : XmLabel{}; end module; I have install lesstiff and xfree correctly (i have no problem to make motif prog which don't use uil) CU Frédéric P.S:excuse my poor english