shift/reduce conflict.
From Kai-Uwe Rommel <rommel@ars.de>:
* defparse.y: Add tokens NONSHARED, SINGLE, MULTIPLE,
INITINSTANCE, INITGLOBAL, TERMINSTANCE, and TERMGLOBAL.
(command): Add option_list after LIBRARY.
(attr): Accept and ignore NONSHARED, SINGLE, and MULTIPLE.
(option_list, option): New nonterminals.
* deflex.l: Recognize NONSHARED, SINGLE, MULTIPLE, INITINSTANCE,
INITGLOBAL, TERMINSTANCE, and TERMGLOBAL.
