[gnome-software] build: fix undeclared dependency on gio-unix-2.0

[Kalev Lember <klember src gnome org>]

commit a0f253ff0d539da064d3327e066f0a60bf66b42f
Author: Jan Tojnar <jtojnar gmail com>
Date:   Thu Mar 8 01:01:10 2018 +0100

    build: fix undeclared dependency on gio-unix-2.0
    
    https://gitlab.gnome.org/GNOME/gnome-software/issues/320

 plugins/dummy/meson.build | 2 +-
 plugins/meson.build       | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/plugins/dummy/meson.build b/plugins/dummy/meson.build
index e7b6602a..8beefa14 100644
--- a/plugins/dummy/meson.build
+++ b/plugins/dummy/meson.build
@@ -12,7 +12,7 @@ shared_module(
   install : true,
   install_dir: plugin_dir,
   c_args : cargs,
-  dependencies : [appstream_glib, gtk, libsoup]
+  dependencies : [appstream_glib, gio_unix, gtk, libsoup]
 )
 
 if get_option('enable-tests')
diff --git a/plugins/meson.build b/plugins/meson.build
index eb6e283f..b7b8c420 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -1,6 +1,7 @@
 plugin_dir = join_paths(get_option('libdir'), 'gs-plugins-11')
 plugin_libs = [
   appstream_glib,
+  gio_unix,
   gtk,
   json_glib,
   libsoup