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diff --git a/include/babeltrace/graph/message-iterator-const.h b/include/babeltrace/graph/message-iterator-const.h
new file mode 100644
index 00000000..43a6ab19
--- /dev/null
+++ b/include/babeltrace/graph/message-iterator-const.h
@@ -0,0 +1,43 @@
+#ifndef BABELTRACE_GRAPH_MESSAGE_ITERATOR_CONST_H
+#define BABELTRACE_GRAPH_MESSAGE_ITERATOR_CONST_H
+
+/*
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
+ * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum bt_message_iterator_status {
+	BT_MESSAGE_ITERATOR_STATUS_OK = 0,
+	BT_MESSAGE_ITERATOR_STATUS_END = 1,
+	BT_MESSAGE_ITERATOR_STATUS_AGAIN = 11,
+	BT_MESSAGE_ITERATOR_STATUS_ERROR = -1,
+	BT_MESSAGE_ITERATOR_STATUS_NOMEM = -12,
+} bt_message_iterator_status;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BABELTRACE_GRAPH_MESSAGE_ITERATOR_CONST_H */