Hello,

I have the following error in Debian/Hurd; I have reviewed the file `nix/libstore/pathlocks.cc` but I do not finish by understanding how it works.

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./pre-inst-env guix build hello
madvise failed: Function not implemented
madvise failed: Function not implemented
guix build: error: build failed: acquiring/releasing lock: Invalid argument
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Attached the log, rpctrace.

Thank you
Rene