voipchat over ipv6 does not work

[madebr]

voipchat does not work over ipv6.

Using #109, running the server as voipchat --server ::1 or voipchat --server ::/0 , and running the clients as voipchat ::1 or voipchat localhost fails for me.

SDLNet_SendDatagram fails with the following message:

SDLNet_SendDatagram failed: Failed to send from socket: Address family not supported by protocol

I can only get it working by using ipv4, by starting the server as voipchat --server 127.0.0.1 or voipchat --server 0.0.0.0,
and starting the clients as voipchat 127.0.0.1.

Or am I doing something wrong?

System: Fedora Linux 39