* configure.in (host_xm_file, build_xm_file): Include hwint.h.
        Use case statements instead of "if test -a ... -a ... -a ..."
        * machmode.h: Don't define HOST_WIDE_INT, etc. Wrap use of
        HOST_WIDE_INT in #ifdef.
        * mips.h: Include hwint.h instead of providing definitions for
        HOST_WIDE_INT, etc.  Wrap uses of HOST_WIDE_INT in #ifdef.

From-SVN: r26291