libcap-ng-dev 0.6.5-0ubuntu1 (amd64 binary) in ubuntu natty

 This library implements the user-space interfaces to the POSIX
 1003.1e capabilities available in Linux kernels. These capabilities are
 a partitioning of the all powerful root privilege into a set of distinct
 privileges.
 .
 The libcap-ng library is intended to make programming with posix
 capabilities much easier than the traditional libcap library.