message: cmake: avoid ALIAS target
  This is not allowed on IMPORTED targets.
diff: @@ -6,5 +6,6 @@ include("${CMAKE_CURRENT_LIST_DIR}/pugixml-targets.cmake")
  # version or not requesting one at all), provide the old imported target name
  # for compatibility.
  if (NOT DEFINED PACKAGE_FIND_VERSION OR PACKAGE_FIND_VERSION VERSION_LESS "1.11")
  - add_library(pugixml ALIAS pugixml::pugixml)
  + add_library(pugixml INTERFACE IMPORTED)
  + target_link_libraries(pugixml INTERFACE pugixml::pugixml)
  endif ()
  