Internal Program Version: libXinerama  1.1.2

libXinerama provides an X Window System client interface to
the XINERAMA extension to the X protocol.

The Xinerama (also known as panoramiX) extension allows for
multiple screens attached to a single display to be treated
as belonging together, and to give desktop applications a
better idea of the monitor layout.

ftp://ftp.gwdg.de/pub/x11/x.org/pub/individual/lib