gnu: Add emacs-clojure-mode.

* gnu/packages/emacs.scm (emacs-clojure-mode): New variable.

Signed-off-by: Alex Kost <alezost@gmail.com>

gnu/packages/emacs.scm

@@ -1662,3 +1662,25 @@ wrap-region, electric-pair-mode, paredit and others.  With the basic
 features found in other packages it also brings many improvements as
 well as completely new features.")
     (license license:gpl3+)))
+
+(define-public emacs-clojure-mode
+  (package
+    (name "emacs-clojure-mode")
+    (version "5.3.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/clojure-emacs/clojure-mode/archive/"
+                    version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0gi8ra3ap5m3mz4qh1yxp2cldn7z9xcxvypznr6rrlc6a9l8s5a6"))))
+    (build-system emacs-build-system)
+    (home-page "http://github.com/clojure-emacs/clojure-mode")
+    (synopsis "Major mode for Clojure code")
+    (description
+     "This Emacs package provides font-lock, indentation, navigation and basic
+refactoring for the @uref{http://clojure.org, Clojure programming language}.
+It is recommended to use @code{clojure-mode} with paredit or smartparens.")
+    (license license:gpl3+)))