change will break existing code that relies on the current
(ill-defined) semantics, so just avoid doing this in general.
-=head2 Self-tying of Arrays and Hashes Is Forbidden
+=head2 Self-tying Problems
Self-tying of arrays and hashes is broken in rather deep and
hard-to-fix ways. As a stop-gap measure to avoid people from getting
frustrated at the mysterious results (core dumps, most often) it is
for now forbidden (you will get a fatal error even from an attempt).
+Self-tying of globs is broken, but not disabled.
+
+Self-tying of scalars and IO works.
+
=head2 Building Extensions Can Fail Because Of Largefiles
Some extensions like mod_perl are known to have issues with