libcephfs-dev 13.2.1+dfsg1-0ubuntu2 (amd64 binary) in ubuntu cosmic

 Ceph is a distributed network file system designed to provide
 excellent performance, reliability, and scalability. This is a
 shared library allowing applications to access a Ceph distributed
 file system via a POSIX-like interface.
 .
 This package contains development files needed for building applications that
 link against libcephfs2.