Hello,depending on what buildds I get, the BOINC package either compiler - or not. This time they are not available on either kfreebsd platform: https://buildd.debian.org/status/package.php?p=boinc
I tried investigating that on a virtual machine at home - but it just works. Please investigate - and fix. I offer Euro 100 to Debian if the problem turns out to be on my side.
Many thanks Steffen