message: When Boost is not found via CMake, tell what exact features are disabled
diff: @@ -192,6 +192,7 @@ if(Boost_LOCALE_FOUND AND GETTEXT_MSGFMT_EXECUTABLE)
  set(HAVE_I18N true)
  else()
  set(HAVE_I18N false)
  + message(STATUS "Boost.Locale is not found, disabling i18n support")
  endif()
  if(HAVE_I18N AND GETTEXT_MSGMERGE_EXECUTABLE)
  