How to enable nanorc file?

The begining of nanorc file states that --enable-nanorc should be
configured.
I write .nanorc file with a single line stating --enable-nanorc and get the
following error when opening nano:

Error in /home/kemal/.nanorc on line 1: Command "--enable-nanorc" not
understood

When I delete .nanorc file from my home directory expecting /etc/nanorc
file to be in effect, to no avail.

Could you kindly help please
TIA
Kemal