versions for Ubuntu 20.04.4 and/or OpenSuSE leap 15.3

[jiulek]

Dear Sir,

Primarily, I am an opensuse user, so it would be nice to have a fgsl package specific for that (compiling from source did nor work for me). As a contouring, I have a Kubuntu (virutal)Machine , version 20.04.4. Unfortunately, for me the ubuntu instructions did not work. I issue: " iulek@iulek-VirtualBox:/usr/local$ sudo curl http://lvserver.ugent.be/apt/xmi.packages.key | sudo apt-key add - % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 6439 100 6439 0 0 13613 0 --:--:-- --:--:-- --:--:-- 13584 OK iulek@iulek-VirtualBox:/usr/local$ " Then I add: " deb [arch=amd64] http://lvserver.ugent.be/apt/ubuntu wily stable deb-src http://lvserver.ugent.be/apt/ubuntu wily stable " to /etc/apt/sources.list (or, even if I change "wily" to "focal") But then I get: " iulek@iulek-VirtualBox:/usr/local$ sudo apt-get update Hit:1 http://br.archive.ubuntu.com/ubuntu focal InRelease Hit:2 http://br.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 http://br.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:4 http://archive.canonical.com/ubuntu focal InRelease
Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB] Hit:6 http://lvserver.ugent.be/apt/ubuntu focal InRelease
Get:7 http://lvserver.ugent.be/apt/ubuntu wily InRelease [2.343 B]
Err:7 http://lvserver.ugent.be/apt/ubuntu wily InRelease The following signatures were invalid: CB66CB1174623729C9A3AC4F1CA7FDC8856B2D18 Reading package lists... Done W: GPG error: http://lvserver.ugent.be/apt/ubuntu wily InRelease: The following signatures were invalid: CB66CB1174623729C9A3AC4F1CA7FDC8856B2D18 E: The repository 'http://lvserver.ugent.be/apt/ubuntu wily InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. iulek@iulek-VirtualBox:/usr/local$ " and so it says to me it cannot find packages libfgsl0, etc.

Is there a work around for that? Thank you,

Jorge