add_library(sim AtmosphericModel.h ConstantAtmosphere.h ConstantGravityModel.h DESolver.h Environment.h GeoidModel.h GravityModel.h Propagator.cpp Propagator.h RK4Solver.h SphericalGeoidModel.cpp SphericalGeoidModel.h SphericalGravityModel.cpp SphericalGravityModel.h StateData.h USStandardAtmosphere.cpp USStandardAtmosphere.h WindModel.cpp WindModel.h) target_link_libraries(sim PRIVATE utils) # Unit tests add_subdirectory(tests)