[totem] backend: Use WARN_CFLAGS when compiling

[Bastien Nocera <hadess src gnome org>]

commit 6c1a7207c3b3595c2507429b0b9f119278e24d9f
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Mar 22 17:04:33 2016 +0100

    backend: Use WARN_CFLAGS when compiling

 src/backend/Makefile.am |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/backend/Makefile.am b/src/backend/Makefile.am
index 4e2a348..75dab1f 100644
--- a/src/backend/Makefile.am
+++ b/src/backend/Makefile.am
@@ -13,7 +13,8 @@ bvw_test_CPPFLAGS = \
 
 bvw_test_CFLAGS =              \
        $(BACKEND_CFLAGS)       \
-       $(AM_CFLAGS)
+       $(AM_CFLAGS)            \
+       $(WARN_FLAGS)
 
 bvw_test_LDADD =                                       \
        libbaconvideowidget.la                          \
@@ -66,7 +67,8 @@ libbaconvideowidget_la_CPPFLAGS = \
 
 libbaconvideowidget_la_CFLAGS =        \
        $(BACKEND_CFLAGS)       \
-       $(AM_CFLAGS)
+       $(AM_CFLAGS)            \
+       $(WARN_CFLAGS)
 
 libbaconvideowidget_la_LIBADD =                                        \
        $(top_builddir)/src/gst/libtotemgsthelpers.la           \