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+// file : bbot/version -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#ifndef LIBBBOT_VERSION // Note: using the version macro itself.
+
+#include <butl/version> // LIBBUTL_VERSION
+
+// Version format is AABBCCDD where
+//
+// AA - major version number
+// BB - minor version number
+// CC - bugfix version number
+// DD - alpha / beta (DD + 50) version number
+//
+// When DD is not 00, 1 is subtracted from AABBCC. For example:
+//
+// Version AABBCCDD
+// 2.0.0 02000000
+// 2.1.0 02010000
+// 2.1.1 02010100
+// 2.2.0-a1 02019901
+// 3.0.0-b2 02999952
+//
+#define LIBBBOT_VERSION 49901
+#define LIBBBOT_VERSION_STR "0.5.0-a1"
+
+// Generally, we expect minor versions to be source code backwards-
+// compatible, thought we might have a minimum version requirement.
+//
+// Note: does not apply during early development.
+//
+#if LIBBUTL_VERSION != 49901
+# error incompatible libbutl version
+#endif
+
+#endif // LIBBBOT_VERSION