;; Compress the debug sections with Zstd
        (when objcopy-can-compress?     ;not available during early bootstrap
          ;; It's safe to use multiple threads as objcopy produces no output.
          (n-par-for-each (if parallel-build?
                              (parallel-job-count)
                              1)
                          (lambda (f)
                            (make-file-writable f)
                            (or (false-if-exception
                                 (invoke objcopy-command
                                         "--compress-debug-sections=zstd" f))
                                (invoke objcopy-command
                                        "--compress-debug-sections=zlib" f)))
                          debug-files))))))

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