diff -up cmake-3.19.2/Tests/RunCMake/CPack/tests/THREADED_ALL/test.cmake.CPACK_ARCHIVE_THREADS cmake-3.19.2/Tests/RunCMake/CPack/tests/THREADED_ALL/test.cmake
--- cmake-3.19.2/Tests/RunCMake/CPack/tests/THREADED_ALL/test.cmake.CPACK_ARCHIVE_THREADS	2020-12-16 06:35:29.000000000 -0600
+++ cmake-3.19.2/Tests/RunCMake/CPack/tests/THREADED_ALL/test.cmake	2021-01-12 16:47:40.139581556 -0600
@@ -1,6 +1,6 @@
 install(FILES CMakeLists.txt DESTINATION foo COMPONENT test)
 
-set(CPACK_ARCHIVE_THREADS 0)
+set(CPACK_ARCHIVE_THREADS 4)
 
 if(PACKAGING_TYPE STREQUAL "COMPONENT")
   set(CPACK_COMPONENTS_ALL test)