=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Fetching libconfig-1.7.3.tar.gz
=> Total size: 730800 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file libconfig-1.7.3.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file libconfig-1.7.3.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file libconfig-1.7.3.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file libconfig-1.7.3.tar.gz
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/libconfig