Yes, it's a little bit complicated. Just use the latest commit.
This is not a bug (although CDE has helpfully set some resources for xterm). The xterm uses fonts instead of font sets. CDE has no way to change the behavior of xterm.
This is not a bug (although CDE has helpfully set some resources for xterm). The xterm can not deal with the font set properly. CDE has no way to change the behavior of xterm.
set resources for xterm
dtsession: help xterm load the appropriate font.
Please try uxterm - X terminal emulator for Unicode (UTF-8) environments.
issue: https://sourceforge.net/p/cdesktopenv/tickets/145/
Please try this MR: https://sourceforge.net/p/cdesktopenv/code/merge-requests/51/