I have lots of macros and so would like to create a format out of them. I am using
xetex as engine. Suppose
format.ini is a file which looks like this:
\input plain [lots of macros] \dump
If from the terminal I execute
xetex -ini format.ini I get as error
Undefined control sequence \uselanguage. The command
\uselanguage is part of the macros after
\uselanguage is part of the
etex extension. But I get the same error even if I type on the terminal
xetex -ini -etex format.ini.
What should I do?