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Re: [PATCH] Hard-link to in-tree tools
> I have no idea how to do this in the Makefile. The conditions under
> which we do it are seriously arcane. I suppose it could be done with
If we use symlinks, the rule never runs more than once, because the
timestamps will seem up to date.
If we copy, the rule runs whenever the binary is rebuilt.
The only tricky bit is getting it to check at the right times.