gnu: Add libgweather.

* gnu/packages/gnome.scm (libgweather): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/gnome.scm

@@ -31,6 +31,7 @@
   #:use-module (guix build-system glib-or-gtk)
   #:use-module (gnu packages)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
@@ -2078,3 +2079,50 @@ listening to device events and querying history and statistics.  Any
 application or service on the system can access the org.freedesktop.UPower
 service via the system message bus.")
     (license license:gpl2+)))
+
+(define-public libgweather
+  (package
+    (name "libgweather")
+    (version "3.16.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0x1z6wv7hdw2ivlkifcbd940zyrnvqvc4zh2drgvd2r6jmd7bjza"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(;; The tests want to write to $HOME/.cache/geocode-glib, which doesn't
+       ;; work for the builder.  Punt.
+       #:tests? #f
+       #:make-flags '("CC=gcc") ; for g-ir-scanner
+       #:configure-flags
+       `(;; No introspection for now, as it wants to install to
+         ;; gobject-introspection's own directory and I don't know how to easily
+         ;; override this.
+         "--enable-introspection=no"
+         ,(string-append "--with-zoneinfo-dir="
+                            (assoc-ref %build-inputs "tzdata")
+                            "/share/zoneinfo"))))
+    (native-inputs
+     `(("glib:bin" ,glib "bin") ; for glib-mkenums
+       ("pkg-config" ,pkg-config)
+       ("intltool" ,intltool)))
+    (propagated-inputs
+     ;; gweather-3.0.pc refers to GTK+, GDK-Pixbuf, GLib/GObject, libxml, and
+     ;; libsoup.
+     `(("gtk+" ,gtk+)
+       ("gdk-pixbuf" ,gdk-pixbuf)
+       ("libxml2" ,libxml2)
+       ("libsoup" ,libsoup)))
+    (inputs
+     `(("tzdata" ,tzdata)
+       ("geocode-glib" ,geocode-glib)))
+    (home-page "https://wiki.gnome.org/action/show/Projects/LibGWeather")
+    (synopsis "Location, time zone, and weather library for GNOME")
+    (description
+     "libgweather is a library to access weather information from online
+services for numerous locations.")
+    (license license:gpl2+)))