-AUTOMAKE_OPTIONS=foreign
+# The goal of -Wno-syntax here is just to suppress the Automake warning
+# about overriding distdir, below.
+AUTOMAKE_OPTIONS=foreign -Wno-syntax
ACLOCAL_AMFLAGS = -I m4
-SUBDIRS = lib datapath secchan controller
-if HAVE_IF_PACKET
-SUBDIRS += switch
-endif
-SUBDIRS += utilities tests include third-party
+SUBDIRS = \
+ lib \
+ datapath \
+ secchan \
+ controller \
+ utilities \
+ switch \
+ tests \
+ include \
+ third-party \
+ debian
if HAVE_EXT
-SUBDIRS += ext
+SUBDIRS += $(EXT)
+distdir = $(PACKAGE)+ext-$(VERSION)
endif
+DIST_SUBDIRS = $(SUBDIRS)
+
EXTRA_DIST = README.hwtables
+
+if HAVE_DPKG_BUILDPACKAGE
+distcheck-hook:
+ cd $(srcdir) && dpkg-buildpackage -rfakeroot -us -uc
+ cd $(srcdir) && fakeroot ./debian/rules clean
+else
+distcheck-hook:
+endif