message: That's unused
diff: @@ -36,8 +36,6 @@ set(RAPID_JSON_INCLUDE_DIR ${RAPID_JSON_DIR}/include)
  set(TINYPLY_DIR ${PROJECT_SOURCE_DIR}/src/3rdparty/tinyply)
  set(TINYPLY_INCLUDE_DIR ${TINYPLY_DIR}/source)
  -set(COMMON_DIR ${PROJECT_SOURCE_DIR}/src/common)
  -
  if (NOT EXISTS ${CMD_LINE_DIR}/.git)
  message(SEND_ERROR "Git submodules not initialized.\nPlease run \"git submodule update --init --recursive\"")
  return()
  