Giovanni Biscuolo <g@xelera.eu> wrote:
> If you modify Emacs (or any Emacs package) you must comply to the terms of the licence.

> modify

Or distribute.

> See https://en.wikipedia.org/wiki/GNU_General_Public_License#Use_of_licensed_software for general information about freedom of use of GNU GPL licnsed free software

Actually, one might find reading the legal text itself [1] more benefiting than reading many various texts about the text (thankfully, FSF have always tried to keep its licences in English than legalese ;-)

In particular, many simplifications as well as detailed explanations of GNU GPL fail to state prominently the only point one might be really interested in:

| You are not required to accept [the terms of] this License [agreement] in order to receive or run a copy of the Program.

[1] <f1> C-c
    or https://www.gnu.org/licenses/gpl-3.0.html