This follows a convention used by some other GNU packages like Autoconf,
Bison, Coreutils, and Gnulib.
* doc.am: Rename to ...
* doc/local.mk: ... this.
* emacs.am: Rename to ...
* emacs/local.mk: ... this.
* gnu-system.am: Rename to ...
* gnu/local.mk: ... this.
* daemon.am: Rename to ...
* nix/local.mk: ... this.
* Makefile.am: Adapt to them.
* doc/guix.texi (Porting to a New Platform): Adapt documentation.
* guix/config.scm.in (%state-directory, %config-directory): Adapt comments.
* emacs/guix-config.el.in (guix-config-state-directory): Likewise.
* emacs/guix-config.el.in (guix-emacs-interface-directory,
guix-state-directory): Rename to ...
(guix-config-emacs-interface-directory, guix-config-state-directory):
...this.
(guix-config-guile-program): New constant.
(guix-guile-program): Move to ...
* emacs/guix-external.el (guix-guile-program): ...here. Make it a
'defcustom'.
* emacs/guix-profiles.el (guix-default-profile): Use
'guix-config-state-directory'.
* emacs/guix-backend.el (guix-load-path): Use
'guix-config-emacs-interface-directory'.
Suggested by Ludovic Courtès <ludo@gnu.org>.
* configure.ac: Set DOT_USER_PROGRAM variable.
* emacs/guix-config.el.in (guix-config-dot-program): New constant.
* emacs/guix-external.el (guix-dot-program): Use it.
Fixes <http://bugs.gnu.org/21127>.
* emacs/guix-backend.el: Use guix-config.
(guix-guile-program): Move to ...
* emacs/guix-config.el.in (guix-guile-program): ... here. Use Guile
program file name from compile-time instead of depending on PATH.
* emacs/guix-{init,profiles}.el.in: Rename to ...
* emacs/guix-{init,profiles}.el: ... these. New files.
Use 'guix-config'.
* emacs/guix-config.el.in: New file.
* emacs.am (nodist_lisp_DATA): Add it. Move them to ...
(ELFILES): ... here.
* .gitignore, configure.ac: Adjust accordingly.
