The issue is still present in 0.12.2 when tclX is included (and its build fails)

URL: https://kitcreator.rkeene.org/kits/d96f3129b58661050abd10a5f5f61f93e6287b8b/tclkit

Description: Tcl 8.6.12, KitCreator 0.12.2, Platform linux-i386, Unthreaded, Packages: itcl, mk4tcl, tcllib, tclx, tdom, tk

Log:

Started on Fri May 10 21:22:02 UTC 2024
Running: export KITCREATOR_PKGS=" itcl mk4tcl tcllib tclx tdom tk "
Running: ./build/make-kit-linux-i386 8.6.12 --disable-threads
Building tcl ... done.
Building tclvfs ... done.
Building zlib ... done.
Building itcl ... done.
Building mk4tcl ... done.
Building tcllib ... done.
Building tclx ... failed.
Building tdom ... done.
Building tk ... done.
Building kitsh ... done.
Failed to build: tclx
WARNING: Build is likely incomplete or failed.