libxdmcp-dev 1:1.0.2-2 (hppa binary) in ubuntu hardy

 This package provides the main interface to the X11 display manager control
 protocol library, which allows for remote logins to display managers.
 .
 This package contains the development headers for the library found in
 libxdmcp6. Non-developers likely have little use for this package.
 .
 More information about X.Org can be found at:
 <URL:http://xorg.freedesktop.org>
 <URL:http://lists.freedesktop.org/mailman/listinfo/xorg>