sudo apt-get install sphinxsearch

Reading package lists… Done

Building dependency tree       

Reading state information… Done

You might want to run ‘apt-get -f install’ to correct these:

The following packages have unmet dependencies:

libc6-dev : Depends: libc6 (= 2.15-0ubuntu10.16) but 2.15-0ubuntu10.18 is to be installed

sphinxsearch : Depends: libpq5 but it is not going to be installed

                Depends: libstemmer0d (>= 0+svn527) but it is not going to be installed

E: Unmet dependencies. Try ‘apt-get -f install’ with no packages (or specify a solution).

sudo reboot

sudo aptitude reinstall libc6