Add version file

1 files changed, 39 insertions, 0 deletions

diff --git a/build/version b/build/version
new file mode 100644
index 0000000..770cf99
--- /dev/null
+++ b/build/version
@@ -0,0 +1,39 @@
+// file      : build/version -*- C++ -*-
+// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BUILD_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
+//
+
+// Generally, we expect minor versions to be source code backwards-
+// compatible, thought we might have a minimum version requirement.
+//
+//                     AABBCCDD
+#if (LIBBUTL_VERSION <     9901 || \
+     LIBBUTL_VERSION >   990000)
+#  error incompatible libbutl version
+#endif
+
+//                        AABBCCDD
+#define BUILD_VERSION         9901
+#define BUILD_VERSION_STR "0.1.0.a1"
+
+#endif // BUILD_VERSION