gnu: Add rust-gtk-sys-0.9.

* gnu/packages/crates-gtk.scm (rust-gtk-sys-0.9): New variable.

gnu/packages/crates-gtk.scm

@@ -877,6 +877,41 @@
      "LGPL-licensed docs for Gtk-rs crates.")
     (license license:lgpl2.0)))
 
+(define-public rust-gtk-sys-0.9
+  (package
+    (name "rust-gtk-sys")
+    (version "0.9.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "gtk-sys" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1hd4w49iaivzjkbxi0bhabqp1ifkzg9g47n822sh12xlqxhgdpjk"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f                      ;missing files
+       #:cargo-inputs
+       (("rust-atk-sys" ,rust-atk-sys-0.9)
+        ("rust-cairo-sys-rs" ,rust-cairo-sys-rs-0.9)
+        ("rust-gdk-pixbuf-sys" ,rust-gdk-pixbuf-sys-0.9)
+        ("rust-gdk-sys" ,rust-gdk-sys-0.9)
+        ("rust-gio-sys" ,rust-gio-sys-0.9)
+        ("rust-glib-sys" ,rust-glib-sys-0.9)
+        ("rust-gobject-sys" ,rust-gobject-sys-0.9)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-pango-sys" ,rust-pango-sys-0.9)
+        ("rust-pkg-config" ,rust-pkg-config-0.3))
+       #:cargo-development-inputs
+       (("rust-shell-words" ,rust-shell-words-0.1)
+        ("rust-tempfile" ,rust-tempfile-3))))
+    (inputs
+     `(("gtk+" ,gtk+)))
+    (home-page "http://gtk-rs.org/")
+    (synopsis "FFI bindings to libgtk-3")
+    (description "This package provides FFI bindings to libgtk-3.")
+    (license license:expat)))
+
 (define-public rust-pango-0.9
   (package
     (name "rust-pango")