GPU: clean up

    file(GLOB_RECURSE GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/*.cu)

    file(GLOB_RECURSE GPU_NOT_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_pppm.cu)

    list(REMOVE_ITEM GPU_LIB_CU ${GPU_NOT_LIB_CU})

    cuda_add_library(lammps_gpu ${GPU_LIB_CU})

    add_custom_target(gpu_objs)

    cuda_wrap_srcs(gpu_objs OBJ GPU_OBJS ${GPU_LIB_CU})

    file(MAKE_DIRECTORY ${LAMMPS_LIB_BINARY_DIR}/gpu)

    foreach(CU ${GPU_LIB_CU})

      get_filename_component(CU_NAME ${CU} NAME_WE)

      set(CU_OBJ ${CUDA_GENERATED_OUTPUT_DIR}/lammps_gpu_generated_${CU_NAME}.cu.o.cubin.txt)

      string(REGEX REPLACE "^lal_" "" CU_HEADER "${CU_NAME}")

      add_custom_command(OUTPUT ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_HEADER}_cubin.h

        COMMAND ${BIN2C} -c -n ${CU_HEADER} ${CU_OBJ} > ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_HEADER}_cubin.h

    foreach(CU_OBJ ${GPU_OBJS})

      get_filename_component(CU_NAME ${CU_OBJ} NAME_WE)

      string(REGEX REPLACE "^.*_lal_" "" CU_NAME "${CU_NAME}")

      add_custom_command(OUTPUT ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_NAME}_cubin.h

        COMMAND ${BIN2C} -c -n ${CU_NAME} ${CU_OBJ}.cubin.txt > ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_NAME}_cubin.h

        DEPENDS ${CU_OBJ} 

        COMMENT "Generating ${CU_HEADER}_cubin.h")

      list(APPEND LIB_SOURCES ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_HEADER}_cubin.h)

        COMMENT "Generating ${CU_NAME}_cubin.h")

      list(APPEND LIB_SOURCES ${LAMMPS_LIB_BINARY_DIR}/gpu/${CU_NAME}_cubin.h)

    endforeach()

    list(APPEND LAMMPS_LINK_LIBS lammps_gpu)

    list(APPEND LIB_SOURCES ${GPU_SOURCES} ${GPU_LIB_SOURCES})

    list(APPEND LIB_SOURCES ${GPU_SOURCES} ${GPU_LIB_SOURCES} ${GPU_OBJS})

    include_directories(${GPU_SOURCES_DIR} ${LAMMPS_LIB_SOURCE_DIR}/gpu

      ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini ${LAMMPS_LIB_BINARY_DIR}/gpu)

    set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES "${AMMPS_LIB_BINARY_DIR}/gpu")

    set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES "${AMMPS_LIB_BINARY_DIR}/gpu/*_cubin.h")

endif()

######################################################