OBS build failure using Ubuntu-18.04 and 20.04

[ra3xdh]

The DEB package build fails for Ubuntu-18.04 and 20.04 when using OpenSUSE build service OBS. It seems the CMake doesn't like the compiler version provided by OBS instance. The most strange is that I cannot reproduce this error on physical installation of Ubuntu-18.04. The package build without error using physical installation. The build log file is attached. The issue has appear after the CMake system update #216

The simplest solution is simple to drop support of the Ubuntu-18.04 and 20.04. The 18.04 is EOL this year, but 20.04 will be supported till 2025.

log.txt

[ra3xdh]

I have found the reason. The OBS provides CMake v3.10 while physical distribution provides CMake 3.18.

[ra3xdh]

I have resolved problem with Ubuntu 20.04. The support of Ubuntu 18.04 will be dropped since this year with EOL of this distribution.