gnu: Add perl-cairo.

* gnu/packages/gtk.scm (perl-cairo): New public variable.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu/packages/gtk.scm

@@ -17,6 +17,7 @@
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -40,6 +41,7 @@
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system perl)
   #:use-module (guix build-system python)
   #:use-module (guix build-system waf)
   #:use-module (gnu packages)
@@ -1238,6 +1240,31 @@ targeted at GTK 2.x, and can be used in conjunction with gnome-python to
 write GNOME applications.")
     (license license:lgpl2.1+)))
 
+(define-public perl-cairo
+  (package
+    (name "perl-cairo")
+    (version "1.106")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://cpan/authors/id/X/XA/XAOC/Cairo-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "1i25kks408c54k2zxskvg54l5k3qadzm8n72ffga9jy7ic0h6j76"))))
+    (build-system perl-build-system)
+    (native-inputs
+     `(("perl-extutils-depends" ,perl-extutils-depends)
+       ("perl-extutils-pkgconfig" ,perl-extutils-pkgconfig)))
+    (inputs
+     `(("cairo" ,cairo)))
+    (home-page "http://search.cpan.org/dist/Cairo/")
+    (synopsis "Perl interface to the cairo 2d vector graphics library")
+    (description "Cairo provides Perl bindings for the vector graphics library
+cairo.  It supports multiple output targets, including PNG, PDF and SVG.  Cairo
+produces identical output on all those targets.")
+    (license license:lgpl2.1+)))
+
 (define-public girara
   (package
     (name "girara")