(Raise_From_Signal_Handler, Propagate_Signal_Exception): Make arg
	const.
	(_gnat_error_handler): Make MSG const.

	* sysdep.c: Fix localtime_r problem on LynxOS.
	Also remove #elif to avoid warnings.

	* misc.c (yyparse): Don't set up and register jmpbuf; remove decls
	used by this.

	* decl.c (annotate_value): Make SIZE unsigned to avoid warning.

From-SVN: r46609