- force regeneration of the intltool files to prevent a problem where the
        tarball copy of intltool-merge.in was out of sync with the intltool.m4
        in the latest shipped copy of intltool, which resulted in a broken
        intltool-merge script when the tree was reautotooled. (appears that the
        tarball was built with a CVS copy of intltool where @EXPANDED_LIBDIR@
        had been renamed to @INTLTOOL_LIBDIR@, but our aclocal/intltool.m4
        doesn't yet reflect that change)