message: Fix erroenous warning
diff: @@ -502,7 +502,7 @@ function(list_licenses OUTPUT MODULES)
  foreach(module ${_MODULES})
  set(license_path "../../third_party/${module}/LICENSE")
  get_filename_component(fullname "${license_path}" ABSOLUTE)
  - if(EXISTS ${license_path})
  + if(EXISTS ${fullname})
  string(APPEND CONTENT "${STR_OPENER}License and copyrights for ${module}:\n${STR_CLOSER},\n")
  file(READ ${license_path} license_long)
  string(REPLACE "\n" "${STR_CLOSER},\n${STR_OPENER}" license ${license_long})
  