1. shared libraries required by libc5 X clients The X libraries are the interface between X client programs and the hardware-oriented X servers, and consist of routines to read input from the keyboard and pointer, draw on the screen, etc., in an abstract manner that is independent of the particular characteristics of the hardware. The X libraries communicate with X servers by means of the X protocol. Xlib itself provides the low-level functionality; Xt, the X Toolkit Intrinsics, is often used as a foundation for widget libraries such as Lesstif or Athena. Xaw, the Athena widget set, provides a rudimentary set of graphical user-interface elements (buttons, scrollbars, text boxes, etc.). Several more libraries are provided to implement the functions of various X extensions. X clients compiled against libc5 require that the X libraries be compiled against libc5 as well. xlib6 provides such backward compatibility. To avoid redundancy, this package depends on the current version of the X library packages for various non-binary files used by the X libraries (bitmaps, locale data, etc.). From Debian 3.0r0 APT