The ddm project is Display Manager base SDDM fork.
Check debian/control for build-time and runtime dependencies, or use cmake to check the missing required dependencies.
Regular CMake building steps applies, in short:
$ cmake -Bbuild
$ cmake --build build
$ cmake --install build # only do this if you know what you are doingA debian folder is provided to build the package under the deepin linux desktop distribution. To build the package, use the following command:
$ sudo apt build-dep . # install build dependencies
$ dpkg-buildpackage -uc -us -nc -b # build binary package(s)ddm is licensed under GPL-2.0.