can enable it when configuring, e.g., './configure CFLAGS="-g3 -O2
-mmpx -fcheck-pointer-bounds"' on Intel MPX platforms.
-** Emacs now normally uses a pointer type instead of an integer type
-for the fundamental word in the Emacs Lisp interpreter, to help
+** Emacs now normally uses a C pointer type instead of a C integer
+type to implement Lisp_Object, which is the fundamental machine word
+type internal to the Emacs Lisp interpreter. This change aims to
catch typos and support -fcheck-pointer-bounds. The 'configure'
option --enable-check-lisp-object-type is therefore no longer as
useful and so is no longer enabled by default in developer builds,