--- /dev/null
+#ifndef BABELTRACE2_CTF_WRITER_TYPES_H
+#define BABELTRACE2_CTF_WRITER_TYPES_H
+
+/*
+ * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Author: 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.
+ *
+ * The Common Trace Format (CTF) Specification is available at
+ * http://www.efficios.com/ctf
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/// False boolean value for the #bt_ctf_bool type.
+#define BT_CTF_FALSE 0
+
+/// True boolean value for the #bt_ctf_bool type.
+#define BT_CTF_TRUE 1
+
+typedef int bt_ctf_bool;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BABELTRACE2_CTF_WRITER_TYPES_H */