Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.

Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.

        * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
        * cplus-dem.c: Delete.
        * Makefile.in (fold-const.o): depend on $(RTL_H).
        * fold-const.c: Include rtl.h to get the prototype for
        `set_identifier_local_value'.
        * loop.c (express_from_1): Remove unused variable `tmp'.
        (combine_givs): cast the first argument of bzero to char *.
        * toplev.c (display_help): Remove unused variable `looking_for_start'.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r21785