-process, and is also provided as an extension to the user. See the
-documentation string for @code{sb-ext:save-lisp-and-die} for more
-information.
+process, and is also provided as an extension to the user. Note that
+foreign libraries loaded via @code{load-1-foreign} don't survive this
+process; a core should not be saved in this case.
+
+@emph{FIXME: what should be done for foreign libraries?}
+
+@emph{FIXME: document load-1-foreign somewhere}
+
+@include fun-sb-ext-save-lisp-and-die.texinfo
+
+
+@node Stale Extensions
+@comment node-name, next, previous, up
+@subsection Stale Extensions