Package: iputils Version: 3:20190709-3 Severity: minor The package Build-Depends on libidn11-dev but support for libidn1 has been removed some years ago https://github.com/iputils/iputils/commit/9244bd09
The current build log confirms it's disabled https://buildd.debian.org/status/fetch.php?pkg=iputils&arch=amd64&ver=3%3A20190709-3&stamp=1580429147&raw=0 'Library idn2 found: NO' Changing the Build-Depends to libidn2-dev should fix the issue Cheers,