François We recently had to move from minimal cmake version 2.8 to 2.8.12 because cmake-3.19 was giving warnings about some deprecated features in cmake-2.8 (still available in cmake-2.8.12) bound to be remove in the future. The oldest cmake version provided with Ubuntu-16.04 is cmake-3.5.1, I see that Centos7 ships with cmake-2.8.12 but cmake3-3.17.1 is available from EPEL. Is It a problem in your rpms workflow/packaging stuff to switch to cmake3 from EPEL? I'm asking you this because I'd like to rise minimal version for cmake based on the oldest distro that Slavek package, at the moment Ubunty-16.04 with cmake-3.5.1, afterward Ubuntu-18.04 with cmake-3.10.1, etc.