From 4ea11e0d7c0575316a6ccc07a931164ca29c3d2f Mon Sep 17 00:00:00 2001
From: Corentin Le Molgat <corentinl@google.com>
Date: Mon, 29 Jan 2018 14:59:08 +0100
Subject: [PATCH] Rework CMake glog VERSION management.

- Use of Project version properties instead of custom variables
- fix missmatch between VERSION (build version) and SOVERSION (API version)
src: https://cmake.org/cmake/help/latest/prop_tgt/VERSION.html#prop_tgt:VERSION

Upstream-Status: Backport [https://github.com/google/glog/commit/6b6e38a7d53fe01f42ce34384cf4ba4c50e8cb65]
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 CMakeLists.txt | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7415eab..fb4e408 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,23 +8,16 @@ if (POLICY CMP0063)
   cmake_policy (SET CMP0063 NEW)
 endif (POLICY CMP0063)
 
-project (google-glog)
+project(glog VERSION 0.3.5 LANGUAGES C CXX)
 
 enable_testing ()
 
-set (GLOG_MAJOR_VERSION 0)
-set (GLOG_MINOR_VERSION 3)
-set (GLOG_PATCH_VERSION 5)
-
-set (GLOG_VERSION
-  ${GLOG_MAJOR_VERSION}.${GLOG_MINOR_VERSION}.${GLOG_PATCH_VERSION})
-
 set (CPACK_PACKAGE_NAME glog)
 set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "")
-set (CPACK_PACKAGE_VERSION_MAJOR ${GLOG_MAJOR_VERSION})
-set (CPACK_PACKAGE_VERSION_MINOR ${GLOG_MINOR_VERSION})
-set (CPACK_PACKAGE_VERSION_PATCH ${GLOG_PATCH_VERSION})
-set (CPACK_PACKAGE_VERSION ${GLOG_VERSION})
+set (CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
+set (CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
+set (CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
+set (CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
 
 option (WITH_GFLAGS "Use gflags" ON)
 option (WITH_THREADS "Enable multithreading support" ON)
@@ -406,8 +399,8 @@ if (gflags_FOUND)
   endif (NOT BUILD_SHARED_LIBS)
 endif (gflags_FOUND)
 
-set_target_properties (glog PROPERTIES VERSION ${GLOG_MAJOR_VERSION})
-set_target_properties (glog PROPERTIES SOVERSION ${GLOG_VERSION})
+set_target_properties (glog PROPERTIES VERSION ${PROJECT_VERSION})
+set_target_properties (glog PROPERTIES SOVERSION ${PROJECT_VERSION_MAJOR})
 
 if (WIN32)
   target_compile_definitions (glog PUBLIC GLOG_NO_ABBREVIATED_SEVERITIES)
@@ -570,7 +563,7 @@ configure_package_config_file (glog-config.cmake.in
   NO_CHECK_REQUIRED_COMPONENTS_MACRO)
 
 write_basic_package_version_file (glog-config-version.cmake VERSION
-  ${GLOG_VERSION} COMPATIBILITY SameMajorVersion)
+  ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion)
 
 export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)
 export (PACKAGE glog)
-- 
2.17.1