Re: Ediff frequently crashes emacs.

[Richard Stallman]

    Sadly I haven't had time to figure out how to build with the checks
    enabled--as I mentioned last time the build fails with a segfault when
    I set that flag to 1.

Please try to debug that crash.  Since it is reproducible, debugging it
should be straightforward even though it may take work.  Once the new
checking features are working, they will probably find us the other
bugs that we can't find in another way.

In fact, I think we should turn on the new checking features by default
so that (1) people will debug them, and (2) people will find the other bugs.