Package: openvpn Version: 2.6.0~git20220518+dco-3 Currently openvpn implicitely disables the unit tests by not build-depending on libcmocka-dev. If it is installed, the unit tests will be built. If not running the unit tests is intentional you should specify the --disable-unit-tests configure flags to get consistent behavior. Or add libcmocka-dev to the build dependencies.
However, on Ubuntu the package even fails to build when libcmocka-dev is installed since Ubuntu enables -flto by default which breaks linking of some of the UTs. Regards, -- Frank Lichtenheld