Nektar++ Base Combines ADRSolver and CompressibleFlowSolver into one solver "CombinedSolver". Example build line: cmake -DNEKTAR_BUILD_PATH=/opt/spack/stage/js0259/spack-stage-nektar-5.2.0-dgxc4tc3u2mabe3h22gcxqpxwxjmc3ih/spack-build-dgxc4tc/ . make -j 12 -B