How to build pidgin from source code and add google talk account

Download the source code from their website.
Run:

./configure --disable-vv --disable-idn --disable-avahi --disable-dbus --disable-perl --disable-tcl
make -j8
sudo make install


Add account:
Username: name without domain
Domain: gmail.com or others

password: if 2nd factor is on: you application password, if not, your real password.

Advanced Tab:
Connection security: Require encryption
Connect server: talk.google.com

After installation, remember to do the hotkeys:
https://liangzou.blogspot.com/2016/01/pidgin-shortcuts-hotkey.html