depends gperf &&
optional_depends attr \
                 "LIBATTR=yes" \
                 "LIBATTR=no" \
                 "for extended attributes support" &&

optional_depends linux-pam \
                 "LIBCAP_PAM=yes" \
                 "LIBCAP_PAM=no" \
                 "for capabilities PAM module" &&

optional_depends go \
                 "GOROOT=${TRACK_ROOT}/opt/go GOLANG=yes" \
                 "GOLANG="    \
                 " support GO"
