* Makefile.in (toplev.o): Depend on $(EXPR_H).
        (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
        * gansidecl.h: Define ATTRIBUTE_NORETURN.
        * genattrtab.c: Have insn-attrtab.c include toplev.h.
        * genextract.c: Have insn-extract.c include toplev.h.
        * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
        * toplev.c: Include expr.h.
        (really_sorry, fancy_abort): Remove prototypes.
        (set_target_switch): Add argument in prototype.
        (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
        (v_really_sorry): Likewise.
        (print_version, print_single_switch, print_switch_values): Make
        static and add prototype arguments.
        (decl_printable_name): Add prototype arguments.
        (lang_expand_expr_t): New typedef.
        (lang_expand_expr): Declare as a lang_expand_expr_t.
        (incomplete_decl_finalize_hook): Add prototype argument.
        (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
        (botch): Likewise for variable `s'.
        (rest_of_type_compilation): Mark variables `type' and `toplev'
        with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
        XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
        (display_help): Make variable `i' an `unsigned long'.
        (main): Remove unused parameter `envp'.
        Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
        Cast -1 when comparing it with a `size_t'.
        * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
        prototype with ATTRIBUTE_NORETURN.
        (fatal_insn_not_found, fatal_insn, really_sorry,
        push_float_handler, pop_float_handler): Add prototypes.
        (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
        (do_abort, botch): Add prototypes.

From-SVN: r22293