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It seems like this has been broken since 26bab2f from 2018; macOS
diff(1)
does not support these arguments and the$PATH
has been fixed since that point. Before that, it would presumably only have worked if you added GNU diffutils toenvironment.systemPackages
.Proactively notifying users about breaking changes isn’t a bad idea, but the activation script doesn’t seem like the right place for it, and as it’s non‐blocking it’s likely that even if it worked it would get drowned out by the later output anyway. I’d like to move the changelog into release notes as part of the manual, which would requires changes to this anyway. Since it’s been broken for almost seven years anyway, let’s just drop it for now and revisit later.