corosync-dev 1.4.2-2 (amd64 binary) in ubuntu precise

 The corosync project is a project to implement a production quality
 "Revised BSD" licensed implementation of all core functionalities
 required by openais. The project implements cutting edge research
 on virtual synchrony to provide 100% correct operation in the face of
 failures or partitionable networks with excellent performance
 characteristics.
 .
 The Application Interface Specification is a software API and policies
 which are used to develop applications that maintain service during
 faults.
 .
 This package contains Corosync development files that do not belong
 to one of the other corosync packages. It also contains the manpages
 for the numerous functions provided by the Corosync libraries.