The FAQ says:
It is sometimes asked if there is any way to get a copy of exactly
the code used to build a snapshot. The answer is no.
For this to change, it would be sufficient if the output of
find src XF4 -path '*/CVS/Entries' -exec perl -ne \
'm:^(/[^/]*/[^/]*): && print substr($ARGV,0,-12),"$1\n"' '{}' ';'
(or equivalent information) accompanies the snapshot.
Pretty please adopt this practice, for it is inexpensive, and I would
recently have loved to have seen a diff between the snapshot source
and the checked-out source.
Such a diff can be generated using something like
cat REVISIONS | while read x; do f=${x%/*}; r=${x##*/}; \
cvs diff -u -r$r $f; done
With a local mirror of the cvs repository, this takes 12 minutes on
my i386 1.5GHz 256MB. Perhaps it's not nice to do this to a remote
anoncvs server.
Checking the tree out file by file with cvs co -r$r $f
takes an insane amount of time.