Bug#1040787: Bug#1040690: Bug#1030394: Bug#1040690: reassign bug to correct package

[Richard Lewis <richard.lewis.debian@googlemail.com>]

I suspect a plain chroot isnt 'enough', i had success with systemd-nspawn:

ln -s /tmp/bullseye/ /var/lib/machines

# im sure there is a better way than these two lines
cp /etc/passwd bullseye/etc/passwd
cp /etc/shadow bullseye/etc/shadow

systemd-nspawn --ephemeral --boot --machine bullseye
# (you dont really need --ephemeral of course)

log into the container as root:
# apt install emacs-gtk

(and say yes to allow the installation to finish)

# ls /usr/share/emacs/site-lisp/elpa
dash-2.17.0  dash-functional-1.2.0  elisp-refs-1.4  helpful-0.18  loop-1.3
dash-2.19.1  elisp-refs-1.3         f-0.20.0        helpful-0.19  s-1.12.0

Shows the 'duplicate' dirs for the old versions of elpa-dash and elpa-helpful

Additionally:
# echo "(require 'helpful nil t)" > ~/.emacs
# emacs --no-init-file --batch --eval "(byte-compile-file \".emacs\")"

# reproduces the warnings:

Loading /etc/emacs/site-start.d/00debian.el (source)...
Warning (comp): Cannot look-up eln file as no source file was found
for /usr/share/emacs/site-lisp/elpa/helpful-0.18/helpful.elc
Warning (comp): Cannot look-up eln file as no source file was found
for /usr/share/emacs/site-lisp/elpa/elisp-refs-1.3/elisp-refs.elc
Warning (comp): Cannot look-up eln file as no source file was found
for /usr/share/emacs/site-lisp/elpa/dash-2.17.0/dash.elc
Warning (comp): Cannot look-up eln file as no source file was found
for /usr/share/emacs/site-lisp/elpa/loop-1.3/loop.elc
Warning (comp): Cannot look-up eln file as no source file was found
for /usr/share/emacs/site-lisp/elpa/dash-functional-1.2.0/dash-functional.elc

## to cleanup:
# close the container by pressing C-] several times
# rm /var/lib/machines/bullseye and /tmp/bullseye