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.
AC_CONFIG_FILES([test-env], [chmod +x test-env])
dnl Emacs interface.
+AC_PATH_PROG([DOT_USER_PROGRAM], [dot], [dot])
AM_PATH_LISPDIR
AM_CONDITIONAL([HAVE_EMACS], [test "x$EMACS" != "xno"])
;;; guix-config.el --- Compile-time configuration of Guix.
;; Copyright © 2015 Mathieu Lirzin <mthl@openmailbox.org>
+;; Copyright © 2015 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
Where ARGS is a list of arguments to the guile program.")
+(defconst guix-config-dot-program "@DOT_USER_PROGRAM@"
+ "Name of the 'dot' executable defined at configure time.")
+
(provide 'guix-config)
;;; guix-config.el ends here
;;; Code:
+(require 'guix-config)
+
(defgroup guix-external nil
"Settings for external programs."
:group 'guix)
-(defcustom guix-dot-program (executable-find "dot")
+(defcustom guix-dot-program
+ (if (file-name-absolute-p guix-config-dot-program)
+ guix-config-dot-program
+ (executable-find "dot"))
"Name of the 'dot' executable."
:type 'string
:group 'guix-external)