+
+EXTRA_DIST += $(OVSIDL_BUILT)
+BUILT_SOURCES += $(OVSIDL_BUILT)
+
+# This must be done late: macros in targets are expanded when the
+# target line is read, so if this file were to be included before some
+# other file that added to OVSIDL_BUILT, then those files wouldn't get
+# the dependency.
+#
+# However, current versions of Automake seem to output all variable
+# assignments before any targets, so it doesn't seem to be a problem,
+# at least for now.
+$(OVSIDL_BUILT): ovsdb/ovsdb-idlc.in