If you're working on language data,
sudo<code> is pretty much only for running package managers like <code>apt (or
dnf) and for running package setup scripts like https://apertium.projectjj.com/apt/install-nightly.sh
In general, don't use
sudo (and don't run as the root user) when building/compiling things
The only exception is
sudo make install, but when working on language data you should never have to do this.