[rygel] examples: Fix distcheck when the .h/.c are disted

[Jens Georg <jensgeorg src gnome org>]

commit 460ce4414cfd9cd89a52893c6766b9145575bb92
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Jun 28 10:13:13 2012 +0200

    examples: Fix distcheck when the .h/.c are disted

 examples/Makefile.am |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/examples/Makefile.am b/examples/Makefile.am
index b049310..fd97f3e 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -2,7 +2,9 @@ include ../common.am
 
 AM_CFLAGS += \
 	-I$(top_builddir)/src/librygel-renderer \
-	-I$(top_builddir)/src/rygel
+	-I$(top_srcdir)/src/librygel-renderer \
+	-I$(top_builddir)/src/rygel \
+	-I$(top_srcdir)/src/rygel
 
 noinst_PROGRAMS = standalone-renderer
 standalone_renderer_SOURCES = standalone-renderer.c