Currently a dedicated server uses the same binary as a regular Doomsday instance. It is not presently possible to build a "cut down" version for use as a dedicated server. This is something we intend to address over the course of the 1.9.x series.
You can nowadays compile the server only by giving qmake the "CONFIG+=deng_noclient" option. That will exclude all the GUI/client components from the build.
Comments
===>>> The following actions will be taken if you choose to proceed:
Install games/doomsday
Install archivers/zip
Install audio/sdl_mixer
Install audio/libmikmod
Install audio/timidity
Install devel/sdl12
Install devel/nasm
Install graphics/aalib
Install graphics/libGLU
Install graphics/libGL
Install archivers/gtar
Install devel/bison
Install devel/m4
Install devel/gettext-tools
Install devel/libdevq
Install devel/makedepend
Install devel/xorg-macros
Install graphics/libdrm
Install devel/libpciaccess
Install misc/pciids
Install graphics/libglapi
Install lang/python2
Install textproc/py-libxml2
Install devel/py-setuptools27
Install x11/dri2proto
Install x11/glproto
Install x11/libXdamage
Install x11/damageproto
Install x11/libxshmfence
Install x11/presentproto
Install x11/libXxf86vm
Install x11/xf86vidmodeproto
Install devel/qmake4
Install devel/qt4-corelib
Install devel/qt4-moc
Install graphics/qt4-opengl
Install x11-toolkits/qt4-gui
Install devel/qt4-rcc
Install devel/qt4-uic
Install devel/xdg-utils
Install misc/hicolor-icon-theme
Install x11/xprop
Install x11/xset
Install x11-fonts/libXfontcache
Install x11-fonts/fontcacheproto
Install print/cups-client
Install x11/libXcursor
Install x11/libXinerama
Install x11/xineramaproto
Install x11/libXrandr
Install x11/randrproto
Install net/qt4-network
Install net/sdl_net
===>>> Proceed? y/n [y]