slackbuilds_ponce/system/gdm

The Gnome Display Manager (GDM) is a display manager that
implements all significant features required for managing
local and remote displays. For full information about GDM
features, refer to the documentation.

The Sessions that gdm uses are installed in /etc/X11/gdm/Sessions.
Several example files are included for blackbox, fluxbox, fvwm2,
kde, twm, windowmaker, and xfce.

gnome-doc-utils and libgnomecanvas (available at SBo) are
required to build GDM.