a test on the same CVS setup as previous, as they seemed to be wrong.

We're not actually using the result for anything at this point though.

make -i
show lib/config.h
and some initial checks to prevent this running multiple times without the
CVS having changed

to enable better error-tracking

errors

single failures

info in case of failures

curl on a unix host from CVS

only allocating the scratch memory buffer once it is needed and not always
in the handle.