Merge pull request #2911 from rouault/cmake_version

CMake: align the VERSION of the library with libtool practices
OSGeo · Oct 23, 2021 · 9817fe7 · 9817fe7
2 parents 9aed9e0 + 5a47650
commit 9817fe7
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -111,8 +111,13 @@ message(STATUS "Configuring PROJ:")
 ################################################################################
 include(ProjVersion)
 proj_version(MAJOR 8 MINOR 2 PATCH 0)
-set(PROJ_API_VERSION "22")
-set(PROJ_BUILD_VERSION "23.0.1")
+# Use libtool convention to build the CMake's VERSION and SOVERSION
+# See https://github.com/pvanhoof/dir-examples#cmake-in-the-cmake-example
+set(PROJ_LIBTOOL_CURRENT    23)
+set(PROJ_LIBTOOL_REVISION   0)
+set(PROJ_LIBTOOL_AGE        1)
+math(EXPR PROJ_API_VERSION "${PROJ_LIBTOOL_CURRENT} - ${PROJ_LIBTOOL_AGE}")
+set(PROJ_BUILD_VERSION "${PROJ_API_VERSION}.${PROJ_LIBTOOL_AGE}.${PROJ_LIBTOOL_REVISION}")
 
 ################################################################################
 # Build features and variants

diff --git a/HOWTO-RELEASE b/HOWTO-RELEASE
@@ -51,8 +51,7 @@ the steps below to determine the next ABI version number:
 Update the following files with the new ABI version number:
 
     - `src/Makefile.am`     Update -version-info
-    - `CMakeLists.txt`:     Update PROJ_BUILD_VERSION (cur:rev:age) and
-                            PROJ_API_VERSION (current-age)
+    - `CMakeLists.txt`:     Update PROJ_LIBTOOL_CURRENT, PROJ_LIBTOOL_REVISON and PROJ_LIBTOOL_AGE
 
 *Commit the changes to master.*