recent gnulib changes require coreutils adaptations

[Jim Meyering]

FYI, in case someone else has the same problems,
I had to make some changes in order to get coreutils'
bootstrap procedure to succeed once again:

        <http://git.sv.gnu.org/gitweb/?p=coreutils.git;a=summary>

2007-07-08  Jim Meyering  <address@hidden>

        Adapt to deeper hierarchy in gnulib.
        * bootstrap (gnulib_tool): If the destination directory doesn't exist,
        create it. This is required at least for "lib/uniwidth/cjk.h".

        Use <wchar.h>, not "wcwidth.h".
        * src/wc.c: Now that gnulib provides the POSIX-specified <wchar.h>,
        include it and <wctype.h>, rather than "wcwidth.h".
        * src/ls.c: Include <wchar.h>, rather than "wcwidth.h".