libindex0-dev 4:3.5.7enterprise20070926-0ubuntu1 (amd64 binary) in ubuntu gutsy

 This library provides text indexing and is currently used by KMail
 to implement searching through mail text.
 .
 This is the development package which contains the headers for the libindex
 library.
 .
 This package is part of KDE, and a component of the KDE PIM module.
 See the 'kde' and 'kdepim' packages for more information.