Static libcap.a is needed to build lxc.init.static that is used as init for application LXC containers.
libcap-1:2.27.0.2.ac1e-alt3 -> sisyphus: Wed Aug 12 2020 Dmitry V. Levin <ldv@altlinux> 1:2.27.0.2.ac1e-alt3 - Build and package static library (closes: #37718).