Это не похоже на работу.
aptitude install libevent1
locate libevent
/usr/share/doc/libevent1
/usr/share/doc/libevent1/changelog.Debian.gz
/usr/share/doc/libevent1/copyright
/var/cache/apt/archives/libevent1_1.3e-3_amd64.deb
/var/lib/dpkg/info/libevent1.list
/var/lib/dpkg/info/libevent1.md5sums
/var/lib/dpkg/info/libevent1.postinst
/var/lib/dpkg/info/libevent1.postrm
/var/lib/dpkg/info/libevent1.shlibs
falcon@cache1:~/src/beanstalkd-1.4.3$ libevent1