Stefan Monnier wrote: >> IOW, do you expect the byte-compile instances to be different in any >> way from a fresh Emacs session invoked from the shell as "emacs -Q"? > > Yes, because the current Emacs may be a different executable than the > one the shell would run in response to "emacs -Q".
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=10125#50 Turns out I was looking for invocation-directory and invocation-name. If you want to worry about wacky things like a new Emacs having been installed on top of the old in the meantime, more power to you.