Toplevel bootstrap patches cause bootstrap breakage

[Daniel Jacobowitz]

On Tue, Feb 21, 2006 at 01:50:47PM -0500, David Edelsohn wrote:
> if [ -d ../prev-gcc ]; then \
>   cd ../prev-gcc && \
>   make install-headers-tar DESTDIR=`pwd`/../gcc/ \
>     libsubdir=. ; \
> else \

That's the problem.

Paolo, we can't run make targets inside prev-gcc.  install-headers-tar
has dependencies; one of them must go all the way back to xgcc (not
surprising), and moving gcc and prev-gcc around means that xgcc
will need to be rebuilt, probably because it is now older than the
headers in prev-gcc.

I think that either we need a variant of install-headers-tar with no
dependencies to do this, or find some other way entirely.

-- 
Daniel Jacobowitz
CodeSourcery