le nom du paquet c’est libc6-dev
apt policy libc6-dev
libc6-dev:
Installé : 2.29-10
Candidat : 2.29-10
Table de version :
*** 2.29-10 990
990 https://cdn-aws.deb.debian.org/debian bullseye/main amd64 Packages
100 https://cdn-aws.deb.debian.org/debian sid/main amd64 Packages
100 /var/lib/dpkg/status
2.28-10 500
500 https://cdn-aws.deb.debian.org/debian buster/main amd64 Packages
2.24-11+deb9u4 500
500 https://cdn-aws.deb.debian.org/debian stretch/main amd64 Packages
2.24-11+deb9u1 500
500 https://cdn-aws.deb.debian.org/debian-security stretch/updates/main amd64 Packages
2.19-18+deb8u10 500
500 https://cdn-aws.deb.debian.org/debian-security jessie/updates/main amd64 Packages
donc
sudo apt install libc6-dev