This page applies to Doomsday 2.0 or later.
Assuming a clean installation of Fedora Workstation 22, Doomsday can be checked out, built, and installed with the following commands (replace ${my_install_prefix} with the install prefix you wish to use):
$ sudo dnf install cmake git gcc-c++ qt5-qtbase-devel qt5-qtbase-static \
SDL2_mixer-devel libXrandr-devel fluidsynth-devel \
zlib-devel qt5-qtx11extras-devel ncurses-devel
$ git clone --recursive ssh://git@github.com/skyjake/Doomsday-Engine.git deng
$ mkdir deng/build
$ cd deng/build
$ cmake -DCMAKE_BUILD_TYPE=Release -DPREFIX=${my_install_prefix} ../doomsday
$ make
$ make install
Builds after 2109 require the Qt5OpenGLExtensions module that is provided by “qt5-qtbase-static”.