gnu: emacs-tuareg: Update to 2.2.0-0.ccde45b.

* gnu/packages/ocaml.scm (emacs-tuareg): Update to 2.2.0-0.ccde45b.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

gnu/packages/ocaml.scm

@@ -15,6 +15,7 @@
 ;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2020 Brett Gilio <brettg@gnu.org>
 ;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
+;;; Copyright © 2020 Simon Tournier <zimon.toutoune@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -672,20 +673,25 @@ the OCaml core distribution.")
     (license license:lgpl2.1+))); with linking exception
 
 (define-public emacs-tuareg
+  ;; Last upstream release on Sept., 14th, 2018, since then "Package cl
+  ;; deprecated" or 'lexical-binding' and others had been fixed.
+  (let ((commit "ccde45bbc292123ec20617f1af7f7e19f7481545")
+        (revision "0"))
     (package
       (name "emacs-tuareg")
-    (version "2.2.0")
+      (version (git-version "2.2.0" revision commit))
       (source
        (origin
          (method git-fetch)
          (uri (git-reference
                (url "https://github.com/ocaml/tuareg")
-             (commit version)))
+               (commit commit)))
          (file-name (git-file-name name version))
          (sha256
-        (base32 "06zxnn85fk5087iq0zxc5l5n9fz8r0367wylmynbfhc9711vccy6"))))
+          (base32 "1yxv4bnqarilnpg5j7wywall8170hwvm0q4xx06yqjgcn8pq1lac"))))
       (build-system gnu-build-system)
-    (native-inputs `(("emacs" ,emacs-minimal)
+      (native-inputs
+       `(("emacs" ,emacs-minimal)
          ("opam" ,opam)))
       (arguments
        `(#:phases
@@ -714,7 +720,7 @@ the OCaml core distribution.")
       (description "Tuareg helps editing OCaml code, to highlight important
 parts of the code, to run an OCaml REPL, and to run the OCaml debugger within
 Emacs.")
-    (license license:gpl2+)))
+      (license license:gpl2+))))
 
 (define-public ocaml-menhir
   (package