~/minetest# cmake . -DBUILD_CLIENT=0 -DBUILD_SERVER=1
-- *** Will build version 0.4.13 ***
-- Could NOT find Irrlicht (missing:  IRRLICHT_LIBRARY IRRLICHT_INCLUDE_DIR)
-- cURL support enabled.
-- GetText disabled.
-- Freetype enabled.
-- LuaJIT not found, using bundled Lua.
-- Using GMP provided by system.
-- LevelDB not found!
-- Redis not found!
-- Using bundled JSONCPP library.
-- SpatialIndex not found!
-- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE)
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
IRRLICHT_INCLUDE_DIR (ADVANCED)
   used as include directory in directory /root/minetest/src
   used as include directory in directory /root/minetest/src

-- Configuring incomplete, errors occurred!
See also "/root/minetest/CMakeFiles/CMakeOutput.log".