Bug#898968: Re obuild: FTBFS on byte-code architectures

[Andy Li]

Hi Ralf,

Upstream has merged the fix
<https://github.com/ocaml-obuild/obuild/commit/55ed45108b304ad8aecf3e257dc21c3eafeefcde>
and I've integrated it as a patch to the package.
Would you review and upload it?

Best regards,
Andy