PR bootstrap/54092

        * libfuncs.h: Don't include optabs.h.
        (struct libfunc_entry): Use "int" for op, mode1, mode2 members.
        * optabs.c (hash_libfunc): Don't cast members to int.
        * Makefile.in (LIBFUNCS_H): Don't include OPTABS_H.

From-SVN: r189853