iyzsong pushed a commit to branch master
in repository guix.

commit 49d9fce8271420c16bd23a867951adf027bf3474
Author: Oleg Pykhalov <go.wig...@gmail.com>
Date:   Sat Jun 30 06:05:56 2018 +0300

    gnu: emacs-nix-mode: Fix build by switching upstream source.
    
    'nix' version 2 doesn't provide Emacs libraries anymore.
    
    * gnu/packages/package-management.scm (emacs-nix-mode): Do not inherit
    'nix'.  Switch upstream source to <https://github.com/nixos/nix-mode>.
    
    Signed-off-by: 宋文武 <iyzs...@member.fsf.org>
---
 gnu/packages/package-management.scm | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/gnu/packages/package-management.scm 
b/gnu/packages/package-management.scm
index 6a55f62..1c31230 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès 
<l...@gnu.org>
 ;;; Copyright © 2015, 2017 Ricardo Wurmus <rek...@elephly.net>
 ;;; Copyright © 2017 Muriithi Frederick Muriuki <fredmang...@gmail.com>
-;;; Copyright © 2017 Oleg Pykhalov <go.wig...@gmail.com>
+;;; Copyright © 2017, 2018 Oleg Pykhalov <go.wig...@gmail.com>
 ;;; Copyright © 2017 Roel Janssen <r...@gnu.org>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <m...@tobias.gr>
 ;;; Copyright © 2018 Julien Lepiller <jul...@lepiller.eu>
@@ -41,6 +41,7 @@
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages docbook)
+  #:use-module (gnu packages emacs)
   #:use-module (gnu packages file)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
@@ -433,20 +434,27 @@ sub-directory.")
 
 (define-public emacs-nix-mode
   (package
-    (inherit nix)
     (name "emacs-nix-mode")
+    (version "1.2.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/NixOS/nix-mode/archive/v";
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "06aqz0czznsj8835jqnk794sy2p6pa8kxfqwh0nl5d5vxivria6z"))))
     (build-system emacs-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-after 'unpack 'chdir-elisp
-           ;; Elisp directory is not in root of the source.
-           (lambda _
-             (chdir "misc/emacs"))))))
+    (inputs
+     `(("emacs-company" ,emacs-company)
+       ("emacs-mmm-mode" ,emacs-mmm-mode)))
+    (home-page "https://github.com/NixOS/nix-mode";)
     (synopsis "Emacs major mode for editing Nix expressions")
     (description "@code{nixos-mode} provides an Emacs major mode for editing
 Nix expressions.  It supports syntax highlighting, indenting and refilling of
-comments.")))
+comments.")
+    (license license:lgpl2.1+)))
 
 (define-public stow
   (package

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