+# vswitch E-R diagram
+if BUILD_ER_DIAGRAMS
+$(srcdir)/vswitchd/vswitch.pic: ovsdb/ovsdb-dot.in vswitchd/vswitch.ovsschema
+ $(OVSDB_DOT) $(srcdir)/vswitchd/vswitch.ovsschema \
+ | dot -T pic \
+ | sed -e "/^'/d" \
+ -e '/^box attrs0/d' \
+ -e 's/linethick = 0;/linethick = 1;/' \
+ > $@.tmp
+ mv $@.tmp $@
+else
+$(srcdir)/vswitchd/vswitch.pic: ovsdb/ovsdb-dot.in vswitchd/vswitch.ovsschema
+ touch $@
+endif
+EXTRA_DIST += vswitchd/vswitch.pic
+