libxi-dev 2:1.6.99.1-0ubuntu4 (amd64 binary) in ubuntu saucy

 libXi provides an X Window System client interface to the XINPUT
 extension to the X protocol.
 .
 The Input extension allows setup and configuration of multiple input devices,
 and will soon allow hotplugging of input devices; to be added and removed on
 the fly.
 .
 This package contains the development headers for the library found in
 libxi6. Non-developers likely have little use for this package.
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This module can be found at
 git://anongit.freedesktop.org/git/xorg/lib/libXi