[gnome-control-center] notifications: Use AM_CPPFLAGS rather than INCLUDES

[Bastien Nocera <hadess src gnome org>]

commit 53b8c0a346f6a42e0f261efcef5842f50014c08b
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Jun 25 11:56:03 2014 +0200

    notifications: Use AM_CPPFLAGS rather than INCLUDES
    
    This is deprecated in newer automake versions, and this causes warnings
    with automake 1.14:
    panels/printers/Makefile.am:3: warning: 'INCLUDES' is the old name for
    AM_CPPFLAGS' (or '*_CPPFLAGS')
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732189

 panels/notifications/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/notifications/Makefile.am b/panels/notifications/Makefile.am
index e51272e..03fc755 100644
--- a/panels/notifications/Makefile.am
+++ b/panels/notifications/Makefile.am
@@ -1,6 +1,6 @@
 cappletname = notifications
 
-INCLUDES =                                             \
+AM_CPPFLAGS =                                          \
        $(PANEL_CFLAGS)                                 \
        $(NOTIFICATIONS_PANEL_CFLAGS)                   \
        -DGNOMELOCALEDIR="\"$(datadir)/locale\""        \