After an update a few weeks ago, boinc will no longer launch. It immediately exits with:
boinc: error while loading shared libraries: libnsl.so.2: cannot open shared object file: No such file or directory
It looks like libnsl was in my recently updated (to v. 3) and I suspect the boinc package may need to be re-built accordingly.
See similar (links obfuscated)
bbs archlinux org /viewtopic.php?id=269532