gnu: Add go-golang-org-x-image.

* gnu/packages/golang.scm (go-golang-org-x-image): New variable.

gnu/packages/golang.scm

@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Matthew Jordan <matthewjordandevops@yandex.com>
 ;;; Copyright © 2016 Andy Wingo <wingo@igalia.com>
 ;;; Copyright © 2016, 2019 Ludovic Courtès <ludo@gnu.org>
@@ -692,6 +692,36 @@ for the Go language.")
       (home-page "https://go.googlesource.com/net")
       (license license:bsd-3))))
 
+(define-public go-golang-org-x-image
+  (let ((commit "58c23975cae11f062d4b3b0c143fe248faac195d")
+        (revision "1"))
+    (package
+      (name "go-golang-org-x-image")
+      (version (git-version "0.0.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                       (url "https://go.googlesource.com/image")
+                       (commit commit)))
+                (file-name (string-append "go.googlesource.com-image-"
+                                          version "-checkout"))
+                (sha256
+                 (base32
+                  "0i2p2girc1sfcic6xs6vrq0fp3szfx057xppksb67kliywjjrm5x"))))
+      (build-system go-build-system)
+      (arguments
+       `(#:import-path "golang.org/x/image"
+         ; Source-only package
+         #:tests? #f
+         #:phases
+         (modify-phases %standard-phases
+           (delete 'build))))
+      (home-page "https://go.googlesource.com/image")
+      (synopsis "Supplemental Go image libraries")
+      (description "This package provides supplemental Go libraries for image
+processing.")
+      (license license:bsd-3))))
+
 (define-public go-golang-org-x-sys
   (let ((commit "749cb33beabd9aa6d3178e3de05bcc914f70b2bf")
         (revision "5"))