Add USE_SYSTEM_SDBUS_CPP_LIBS option

Author: awawa-dev

BUILDING.md

@@ -45,6 +45,7 @@ Use -D prefix when configuring the build.
   * USE_CCACHE_CACHING = ON | OFF, enable CCache support if available
   * USE_SYSTEM_MQTT_LIBS = ON | OFF, prefer system qMQTT libs
   * USE_SYSTEM_FLATBUFFERS_LIBS = ON | OFF, prefer system Flatbuffers libs
+  * USE_SYSTEM_SDBUS_CPP_LIBS = ON | OFF, prefer system sdbus_c++ libs
   * USE_STATIC_QT_PLUGINS = ON | OFF, embed static QT-plugins into the application
   * USE_STANDARD_INSTALLER_NAME = ON | OFF, use standard Linux package naming
 

CMakeLists.txt

@@ -34,6 +34,7 @@ SET ( DEFAULT_PROTOBUF                    ON  )
 SET ( DEFAULT_WS281XPWM                   OFF )
 SET ( DEFAULT_USE_SYSTEM_FLATBUFFERS_LIBS ON  )
 SET ( DEFAULT_USE_SYSTEM_MQTT_LIBS        OFF )
+SET ( DEFAULT_USE_SYSTEM_SDBUS_CPP_LIBS   OFF )
 SET ( DEFAULT_MF                          OFF )
 SET ( DEFAULT_DX                          OFF )
 SET ( DEFAULT_AVF                         OFF )
@@ -513,6 +514,9 @@ colorMe("USE_SYSTEM_MQTT_LIBS = " ${USE_SYSTEM_MQTT_LIBS})
 option(USE_SYSTEM_FLATBUFFERS_LIBS "Use system flatbuffers libs" ${DEFAULT_USE_SYSTEM_FLATBUFFERS_LIBS})
 colorMe("USE_SYSTEM_FLATBUFFERS_LIBS = " ${USE_SYSTEM_FLATBUFFERS_LIBS})
 
+option(USE_SYSTEM_SDBUS_CPP_LIBS "Use system sdbus-c++ libs" ${DEFAULT_USE_SYSTEM_SDBUS_CPP_LIBS})
+colorMe("USE_SYSTEM_SDBUS_CPP_LIBS = " ${USE_SYSTEM_SDBUS_CPP_LIBS})
+
 option(USE_STATIC_QT_PLUGINS "Enable static QT plugins" ${DEFAULT_STATIC_QT_PLUGINS})
 colorMe("USE_STATIC_QT_PLUGINS = " ${USE_STATIC_QT_PLUGINS})
 

external/CMakeLists.txt

@@ -262,9 +262,20 @@ ENDIF()
 #=============================================================================
 
 if (UNIX AND NOT APPLE AND (ENABLE_POWER_MANAGEMENT OR ENABLE_PIPEWIRE))
-	set(SDBUSCPP_BUILD_DOCS OFF CACHE BOOL "No doc")
-	add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/sdbus-cpp)
-	set_target_properties(sdbus-c++-objlib PROPERTIES POSITION_INDEPENDENT_CODE ON)
+	if (USE_SYSTEM_SDBUS_CPP_LIBS)
+		pkg_check_modules (sdbus-c++ sdbus-c++>=2.0.0)
+
+		if(NOT sdbus-c++_FOUND)
+			message( WARNING "Could not find: sdbus-c++>=2.0.0. Fallback to sdbus-c++ submodule." )
+		endif()
+	endif()
+
+	if(NOT sdbus-c++_FOUND)
+		message( "Using sdbus-c++ submodule." )
+		set(SDBUSCPP_BUILD_DOCS OFF CACHE BOOL "No doc")
+		add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/sdbus-cpp)
+		set_target_properties(sdbus-c++-objlib PROPERTIES POSITION_INDEPENDENT_CODE ON)
+	endif()
 endif()
 
 #=============================================================================