No it doesn't. People who complain about that clearly haven't actually checked - there's a warning in the old configuration scripts as well:
* Duktape python tooling is obsolete, migrate to JS-based tooling! *
* Duktape python tooling is obsolete, migrate to JS-based tooling! *
$ python2 duktape-2.6.0/tools/configure.py --output-directory src-duktape \
-UDUK_USE_ES6_PROXY
I'm glad to hear my impression that there was no other build system was wrong!