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

[Benjamin Berg <bberg src gnome org>]

commit fa36fdcf59afafb62a38ffa125c2c16d27407958
Author: Jan Tojnar <jtojnar gmail com>
Date:   Wed Mar 14 05:50:00 2018 +0100

    build: fix undeclared dependency on gio-unix-2.0
    
    https://gitlab.gnome.org/GNOME/gnome-settings-daemon/issues/16

 plugins/housekeeping/meson.build | 1 +
 plugins/media-keys/meson.build   | 1 +
 plugins/power/meson.build        | 1 +
 3 files changed, 3 insertions(+)
---
diff --git a/plugins/housekeeping/meson.build b/plugins/housekeeping/meson.build
index 5ac2455e..a0b4ca5f 100644
--- a/plugins/housekeeping/meson.build
+++ b/plugins/housekeeping/meson.build
@@ -9,6 +9,7 @@ sources = common_files + files(
 )
 
 deps = plugins_deps + [
+  gio_unix_dep,
   gtk_dep,
   libnotify_dep
 ]
diff --git a/plugins/media-keys/meson.build b/plugins/media-keys/meson.build
index 91848f9b..e6c1d2ac 100644
--- a/plugins/media-keys/meson.build
+++ b/plugins/media-keys/meson.build
@@ -23,6 +23,7 @@ sources += gnome.gdbus_codegen(
 )
 
 deps = plugins_deps + [
+  gio_unix_dep,
   gsettings_desktop_dep,
   libcanberra_gtk_dep,
   libcommon_dep,
diff --git a/plugins/power/meson.build b/plugins/power/meson.build
index 631823a8..1db2a83a 100644
--- a/plugins/power/meson.build
+++ b/plugins/power/meson.build
@@ -9,6 +9,7 @@ deps = plugins_deps + [
   libcanberra_gtk_dep,
   libcommon_dep,
   libnotify_dep,
+  gio_unix_dep,
   gnome_desktop_dep,
   m_dep,
   upower_glib_dep,