gnu: Add rust-atk-sys-0.18.

* gnu/packages/crates-gtk.scm (rust-atk-sys-0.18): New variable.
(rust-atk-sys-0.14): Inherit from rust-atk-sys-0.18.

Change-Id: I8eb3c1b0df359f77e13e88126b811ab9e49f3cbc
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/crates-gtk.scm

@@ -41,8 +41,40 @@
 ;;;
 ;;; Please: Try to add new module packages in alphabetic order.
 ;;;
+
+(define-public rust-atk-sys-0.18
+  (package
+    (name "rust-atk-sys")
+    (version "0.18.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "atk-sys" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0280k0xw21n3zzri8ynk5mxy7v1mk9d506l962lhngp3j1yhn7i5"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-test-flags '("--release" "--"
+                            "--skip=cross_validate_constants_with_c"
+                            "--skip=cross_validate_layout_with_c")
+       #:cargo-inputs (("rust-glib-sys" ,rust-glib-sys-0.18)
+                       ("rust-gobject-sys" ,rust-gobject-sys-0.18)
+                       ("rust-libc" ,rust-libc-0.2)
+                       ("rust-system-deps" ,rust-system-deps-6))
+       #:cargo-development-inputs (("rust-shell-words" ,rust-shell-words-1)
+                                   ("rust-tempfile" ,rust-tempfile-3))))
+    (native-inputs (list pkg-config))
+    (inputs
+     (list at-spi2-core glib))
+    (home-page "https://gtk-rs.org/")
+    (synopsis "FFI bindings to libatk-1")
+    (description "This package provides FFI bindings to libatk-1.")
+    (license license:expat)))
+
 (define-public rust-atk-sys-0.14
   (package
+    (inherit rust-atk-sys-0.18)
     (name "rust-atk-sys")
     (version "0.14.0")
     (source
@@ -52,7 +84,6 @@
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32 "1sl3pqfb2jaf9kcfxj9k43d7iv8gcl5zgdgn3j5vp13w2mqgdp5s"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:tests? #f                      ; missing files
        #:cargo-inputs
@@ -62,14 +93,7 @@
         ("rust-system-deps" ,rust-system-deps-3))
        #:cargo-development-inputs
        (("rust-shell-words" ,rust-shell-words-1)
-        ("rust-tempfile" ,rust-tempfile-3))))
+        ("rust-tempfile" ,rust-tempfile-3))))))
-    (native-inputs (list pkg-config))
-    (inputs
-     (list at-spi2-core glib))
-    (home-page "https://gtk-rs.org/")
-    (synopsis "FFI bindings to libatk-1")
-    (description "FFI bindings to libatk-1")
-    (license license:expat)))
 
 (define-public rust-atk-sys-0.10
   (package