Add /wayland so we pick up generated header files

Reported by Benjamin Franzke.

clients/Makefile.am

@@ -1,7 +1,10 @@
 noinst_PROGRAMS = gears flower screenshot terminal image view dnd smoke
 noinst_LTLIBRARIES = libtoytoolkit.la
 
-INCLUDES = -I$(top_srcdir)/wayland $(CLIENT_CFLAGS) $(POPPLER_CFLAGS)
+INCLUDES =					\
+	-I$(top_srcdir)/wayland			\
+	-I$(top_builddir)/wayland			\
+	$(CLIENT_CFLAGS) $(POPPLER_CFLAGS)
 
 LDADD = libtoytoolkit.la				\
 	$(top_builddir)/wayland/libwayland-client.la	\

compositor/Makefile.am

@@ -1,6 +1,10 @@
 noinst_PROGRAMS = compositor
 
-INCLUDES = -I$(top_srcdir)/wayland $(COMPOSITOR_CFLAGS)
+INCLUDES =					\
+	-I$(top_srcdir)/wayland			\
+	-I$(top_builddir)/wayland		\
+	$(COMPOSITOR_CFLAGS)
+
 AM_CPPFLAGS = -DDATADIR='"$(datadir)"'
 
 compositor_LDADD =					\