+add_custom_target(supernovae-clean
+COMMAND ${CMAKE_COMMAND} -E remove -f src/supernovae_gras.c
+COMMAND ${CMAKE_COMMAND} -E remove -f src/supernovae_sg.c
+COMMAND ${CMAKE_COMMAND} -E remove -f src/supernovae_smpi.c
+WORKING_DIRECTORY "${CMAKE_HOME_DIRECTORY}"
+)
+