From 26c45372ca4aa6395c5798249587dad07ea81693 Mon Sep 17 00:00:00 2001
From: Jonathan GUILLOT <jonathan@joggee.fr>
Date: Tue, 27 Aug 2024 17:54:05 +0200
Subject: [PATCH] Globally set shared library versions from root CMakeLists.txt

By the way, set SOVERSION to version major. It also fixes wiringPiDev
shared library version not correctly set.
---
 CMakeLists.txt          | 5 +++++
 devLib/CMakeLists.txt   | 2 +-
 wiringPi/CMakeLists.txt | 8 +-------
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 90b4d64..2d3f78e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,11 @@
 cmake_minimum_required(VERSION 3.10)
 project(WiringPiLib)
 
+# Read version from version.h
+file(READ "${CMAKE_CURRENT_SOURCE_DIR}/version.h" WIRINGPI_VERSION)
+string(REGEX REPLACE ".*VERSION \"([0-9]+.[0-9]+)\".*" "\\1" WIRINGPI_VERSION "${WIRINGPI_VERSION}")
+string(REGEX REPLACE "([0-9]+)\..*" "\\1" WIRINGPI_SOVERSION "${WIRINGPI_VERSION}")
+
 # Include subdirectories
 add_subdirectory(devLib)
 add_subdirectory(gpio)
diff --git a/devLib/CMakeLists.txt b/devLib/CMakeLists.txt
index beec8cb..272d369 100644
--- a/devLib/CMakeLists.txt
+++ b/devLib/CMakeLists.txt
@@ -28,7 +28,7 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat=2 -Winline -pipe")
 add_library(wiringPiDev SHARED ${SRC})
 
 # Set the library version
-set_target_properties(wiringPiDev PROPERTIES VERSION ${VERSION} SOVERSION ${WIRINGPI_SONAME_SUFFIX})
+set_target_properties(wiringPiDev PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_SOVERSION})
 
 # Install headers
 install(FILES ${HEADERS} DESTINATION include)
diff --git a/wiringPi/CMakeLists.txt b/wiringPi/CMakeLists.txt
index 1663374..2cde4c6 100644
--- a/wiringPi/CMakeLists.txt
+++ b/wiringPi/CMakeLists.txt
@@ -44,18 +44,12 @@ set(HEADERS
 )
 # Compiler flags
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wformat=2 -Winline -pipe -Wformat-security")
-set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-soname,libwiringPi.so${WIRINGPI_SONAME_SUFFIX}")
-
-# Read version from version.h
-file(READ "${CMAKE_CURRENT_SOURCE_DIR}/../version.h" VERSION)
-string(REGEX REPLACE ".*VERSION \"([0-9]+.[0-9]+)\".*" "\\1" VERSION "${VERSION}")
 
 # Add the library target
 add_library(wiringPi SHARED ${SRC})
 
 # Set the library version
-set(WIRINGPI_SONAME_SUFFIX "1")
-set_target_properties(wiringPi PROPERTIES VERSION ${VERSION} SOVERSION ${WIRINGPI_SONAME_SUFFIX})
+set_target_properties(wiringPi PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_SOVERSION})
 target_include_directories(wiringPi PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
 # Add -lm to link with the math library