gnu: Add emacs-beancount.

* gnu/packages/emacs-xyz.scm (emacs-beancount): New variable.

gnu/packages/emacs-xyz.scm

@@ -6,7 +6,7 @@
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2017, 2018, 2019 Chris Marusich <cmmarusich@gmail.com>
-;;; Copyright © 2015, 2016, 2018 Christopher Lemmer Webber <cwebber@dustycloud.org>
+;;; Copyright © 2015, 2016, 2018, 2020 Christopher Lemmer Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2016 Adriano Peluso <catonano@gmail.com>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 David Thompson <davet@gnu.org>
@@ -106,6 +106,7 @@ (define-module (gnu packages emacs-xyz)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages dictionaries)
   #:use-module (gnu packages emacs)
+  #:use-module (gnu packages finance)
   #:use-module (gnu packages guile)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages gnome)
@@ -22158,3 +22159,21 @@ (define-public emacs-haskell-snippets
       (description "Haskell-Snippets is a collection of YASnippet Haskell
 snippets for Emacs.")
       (license license:expat))))
+
+;; The beancount source ships with elisp in a subdirectory
+(define-public emacs-beancount
+  (package
+    (inherit beancount)
+    (name "emacs-beancount")
+    (build-system emacs-build-system)
+    (arguments
+     `(#:tests? #f ;no tests
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'install 'chdir-emacs
+           (lambda _
+             (chdir "editors/emacs")
+             #t)))))
+    (synopsis "Emacs mode for beancount")
+    (description
+      "Emacs-beancount is an Emacs mode for the Beancount accounting tool.")))