One version number, &c, take two

[DJ Delorie]

> The patch adds three files in the toplevel config/ directory.
> GCC-BASE-VER contains the base version number of the compiler.
> DATESTAMP contains the tree datestamp in the usual YYYYMMDD format;
> it is empty in a release tarball.

Shouldn't that be GCC-DATESTAMP?  The toplevel is shared between a
number of otherwise independent projects.

Plus the usual complaint about putting gcc-specific files in a shared
toplevel directory.  Any reason why these can't be
$(srcdir)/gcc/DATESTAMP et al?