Install xemacs21-basesupport-el by entering the following commands in the terminal:
sudo apt update sudo apt install xemacs21-basesupport-el
Description:
Editor and kitchen sink -- source elisp support files
This package contains the base extra elisp files in order to have a functioning xemacs21 package. . The xemacs21-basesupport package contains the compiled versions of these files. . The major reason to install this package is if you want to learn elisp or modify the libraries for your specific installation.
Version: 2009.02.17.dfsg.2-4
Section: universe/editors