bison problem

[DJ Delorie]

> BTW, DJ to prevent this from happening again, would it be possible
> to just delete ylwrap from GCC's - but not from src's - toplevel
> directory as it is not used anywhere within GCC.

If it's part of the package we import, we should find some other
solution to such things - like testing - and leave the files in sync
in both places.  I'd rather not have different fractions of some
package in each of gcc and src.