Update CMakeLists.txt

Author: awawa-dev

Diff for: external/CMakeLists.txt

@@ -247,9 +247,15 @@ ENDIF()
 #=============================================================================
 
 if (UNIX AND NOT APPLE AND (ENABLE_POWER_MANAGEMENT OR ENABLE_PIPEWIRE))
+	if (USE_SHARED_LIBS)
+		set (BUILD_SHARED_LIBS ON)
+	endif()
 	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_SHARED_LIBS)
+		set (BUILD_SHARED_LIBS OFF)
+	endif()
 endif()
 
 #=============================================================================