Subject: bug#26517: [PATCH] gnu: Add graphene.

From: Roel Janssen <[email-masked]>
Date: Sat, 15 Apr 2017 14:35:03 +0200

>From 547a9892aa98b65c37e8692f797bd7fbdae6ccc2 Mon Sep 17 00:00:00 2001
From: Roel Janssen <[email-masked]>
Date: Sat, 15 Apr 2017 14:33:39 +0200
Subject: [PATCH] gnu: Add graphene.

* gnu/packages/gtk.scm (graphene): New variable.
---
 gnu/packages/gtk.scm | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index 770a8c916..f697e569b 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -42,6 +42,7 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
@@ -1419,3 +1420,42 @@ misspelled words in a GtkTextView widget.")
 thereof, global hotkeys and clipboard item actions.  It was forked from
 Parcellite and adds bugfixes and features.")
     (license license:gpl2+)))
+
+(define-public graphene
+  (package
+    (name "graphene")
+    (version "1.6.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/ebassi/graphene/archive/"
+                    version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32 "1zd2daj7y590wnzn4jw0niyc4fnzgxrcl9i7nwhy8b25ks2hz5wq"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags '("--enable-introspection=yes")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'autogen
+           (lambda _
+             (zero? (system* "./autogen.sh")))))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("which" ,which)
+       ("pkg-config" ,pkg-config)
+       ("automake" ,automake)
+       ("libtool" ,libtool)))
+    (inputs
+     `(("python" ,python)
+       ("python-2" ,python-2)
+       ("glib" ,glib)
+       ("gobject-introspection" ,gobject-introspection)))
+    (home-page "http://ebassi.github.io/graphene")
+    (synopsis "Thin layer of graphic data types")
+    (description "This library provides graphic types and their relative API;
+it does not deal with windowing system surfaces, drawing, scene graphs, or
+input.  You're supposed to do that yourself, in your own canvas implementation,
+which is the whole point of writing the library in the first place.")
+    (license license:expat)))
-- 
2.12.1

Dear Guix,

For the new GTK+ release, we need Graphene.  So here is a patch.

Kind regards,
Roel Janssen