This way make won’t remove them after compilation is done. Normally
this might be useful, but in the case of Emacs Lisp being generated
from Org files, it’s really useful to have the original lisp files
after compiling them to elc files.
This stops Emacs complaining that some file is newer when the main
config depends on it. I don’t add a make dependency between them because
init.el doesn’t need to be recompiled when normal elisp files are
changed. Only when macros are involved.
