This is the Fedora/CentOS packaging for ipcalc based on the original spec created by atim.
The binary was renamed ipcalc-jodies as not to conflict with the other package of the same name from the official Fedora repo.
Builds are available on my Copr at https://copr.fedorainfracloud.org/coprs/losuler/ipcalc-jodies.
This repo can be added on all supported systems by:
dnf copr enable losuler/ipcalc-jodies