message: emit compile commands database
diff: @@ -9,6 +9,8 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
  set(CMAKE_CXX_EXTENSIONS OFF)
  set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
  +set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
  +
  set(UseIPO "AUTO" CACHE STRING "Use interprocedural optimization: ON, OFF or AUTO")
  set_property(CACHE UseIPO PROPERTY STRINGS AUTO ON OFF)
  