*/Makefile.am: merge INCLUDES into AM_CPPFLAGS

automake-1.13 finally warns about this anachronism.

devel-docs/tools/Makefile.am

@@ -14,10 +14,10 @@ libgimpmodule = $(top_builddir)/libgimpmodule/libgimpmodule-$(GIMP_API_VERSION).
 libgimpwidgets = $(top_builddir)/libgimpwidgets/libgimpwidgets-$(GIMP_API_VERSION).la
 
 
-AM_CPPFLAGS = $(GTK_CFLAGS) -DTOP_SRCDIR=\"$(top_srcdir)\"
-
-INCLUDES = \
-	-I$(top_srcdir)	\
+AM_CPPFLAGS = \
+	$(GTK_CFLAGS)			\
+	 -DTOP_SRCDIR=\"$(top_srcdir)\"	\
+	-I$(top_srcdir)			\
 	$(GEGL_CFLAGS)
 
 AM_LDFLAGS = $(mwindows)