From 1c80b61335d792c38402e3a5a8b0430afdfc6469 Mon Sep 17 00:00:00 2001
From: Jason Rhinelander <jason@imaginary.ca>
Date: Fri, 13 Mar 2020 11:37:31 -0300
Subject: [PATCH] Add version to cmake, generate version header

---
 CMakeLists.txt      | 12 ++++++++++++
 lokimq/version.h.in |  5 +++++
 2 files changed, 17 insertions(+)
 create mode 100644 lokimq/version.h.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index abd6e00..c53f056 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,12 +4,23 @@ project(liblokimq CXX)
 
 include(GNUInstallDirs)
 
+set(LOKIMQ_VERSION_MAJOR 1)
+set(LOKIMQ_VERSION_MINOR 0)
+set(LOKIMQ_VERSION_PATCH 0)
+set(LOKIMQ_VERSION "${LOKIMQ_VERSION_MAJOR}.${LOKIMQ_VERSION_MINOR}.${LOKIMQ_VERSION_PATCH}")
+message(STATUS "lokimq v${LOKIMQ_VERSION}")
+
+set(LOKIMQ_LIBVERSION 0)
+
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
 add_library(lokimq
     lokimq/lokimq.cpp
     lokimq/bt_serialize.cpp
 )
+set_target_properties(lokimq PROPERTIES SOVERSION ${LOKIMQ_LIBVERSION})
+
+configure_file(lokimq/version.h.in lokimq/version.h @ONLY)
 
 install(
     FILES lokimq/batch.h
@@ -17,6 +28,7 @@ install(
           lokimq/hex.h
           lokimq/lokimq.h
           lokimq/string_view.h
+          ${CMAKE_CURRENT_BINARY_DIR}/lokimq/version.h
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/lokimq
 )
 
diff --git a/lokimq/version.h.in b/lokimq/version.h.in
new file mode 100644
index 0000000..0c400cb
--- /dev/null
+++ b/lokimq/version.h.in
@@ -0,0 +1,5 @@
+namespace lokimq {
+constexpr int VERSION_MAJOR = @LOKIMQ_VERSION_MAJOR@;
+constexpr int VERSION_MINOR = @LOKIMQ_VERSION_MINOR@;
+constexpr int VERSION_PATCH = @LOKIMQ_VERSION_PATCH@;
+}