function(download_and_decompress url filename sha256_checksum decompress_dir)
  if(EXISTS ${filename})
    file(SHA256 ${filename} CHECKSUM_VARIABLE)
  endif()
  if(NOT EXISTS ${filename} OR NOT CHECKSUM_VARIABLE STREQUAL sha256_checksum)
    message("Downloading file from ${url} to ${filename} ...")
    file(DOWNLOAD ${url} "${filename}.tmp" SHOW_PROGRESS EXPECTED_HASH SHA256=${sha256_checksum})
    file(RENAME "${filename}.tmp" ${filename})
  endif()
  if(NOT EXISTS ${decompress_dir})
    file(MAKE_DIRECTORY ${decompress_dir})
  endif()
  message("Decompress file ${filename} ...")
  execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${filename} WORKING_DIRECTORY ${decompress_dir})
endfunction()