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

[Bastien Nocera <hadess src gnome org>]

commit 492ebb57d5f9044d7e98cdb9d02ccdb96158df2b
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Jun 25 11:56:03 2014 +0200

    display: 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/display/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/display/Makefile.am b/panels/display/Makefile.am
index 502bcd8..af09b1d 100644
--- a/panels/display/Makefile.am
+++ b/panels/display/Makefile.am
@@ -34,7 +34,7 @@ desktopdir = $(datadir)/applications
 Desktop_in_files = gnome-display-panel.desktop.in
 desktop_DATA = $(Desktop_in_files:.desktop.in=.desktop)
 
-INCLUDES   = $(PANEL_CFLAGS) \
+AM_CPPFLAGS   = $(PANEL_CFLAGS) \
             $(DISPLAY_PANEL_CFLAGS) \
             -DGNOMELOCALEDIR="\"$(datadir)/locale\""