These files got installed with: [ebuild R ] app-admin/collectd-4.10.2-r2 USE="-contrib -debug" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog -apache -apcups -ascent -battery -bind -conntrack -contextswitch -cpu -cpufreq -csv -curl -curl_json -curl_xml -dbi -disk -dns -email -entropy -exec -filecount -fscache -gmond -hddtemp -ipmi -iptables -java -libvirt -logfile -madwifi -match_empty_counter -match_hashed -match_regex -match_timediff -match_value -mbmon -memcachec -memcached -multimeter -mysql -netlink -network -nfs -nginx -notify_desktop* -notify_email -ntpd -olsrd -onewire -openvpn -oracle -perl -ping -postgresql -powerdns -processes -protocols -python -rrdcached -sensors -serial -snmp -table -tail -target_notification -target_replace -target_scale -target_set -tcpconns -teamspeak2 -ted -thermal -tokyotyrant -unixsock -uptime -users -uuid -vmem -vserver -wireless -write_http" If the package is using libtool (libltdl) to load plugins, the .la files may be valid. You can check by using strace, instructions are here: http://blog.flameeyes.eu/2009/07/06/identifying-pointless-la-files-for-plugins But all these .a files are useless for plugins, for sure. You should be passing --disable-static to the build system to get rid of them. /usr/lib64/libcollectdclient.a <- the only one that might be valid from .a files /usr/lib64/collectd/notify_desktop.a /usr/lib64/collectd/rrdtool.la /usr/lib64/collectd/irq.a /usr/lib64/collectd/notify_desktop.la /usr/lib64/collectd/memory.a /usr/lib64/collectd/swap.a /usr/lib64/collectd/interface.a /usr/lib64/collectd/interface.la /usr/lib64/collectd/df.la /usr/lib64/collectd/load.a /usr/lib64/collectd/irq.la /usr/lib64/collectd/syslog.a /usr/lib64/collectd/swap.la /usr/lib64/collectd/df.a /usr/lib64/collectd/syslog.la /usr/lib64/collectd/load.la /usr/lib64/collectd/rrdtool.a /usr/lib64/collectd/memory.la /usr/lib64/libcollectdclient.la
Fixed in -r3; if there are no complaints, -r2 can go the way of the dinosaur.