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Re: Git 2.18: RUNTIME_PREFIX... is it working?

On Sun, Jul 08, 2018 at 11:52:22PM +0200, Johannes Schindelin wrote:

> Now, if you care to have a look at Dan's (and my) patches to implement
> RUNTIME_PREFIX so that it looks for a directory *relative to the Git
> binary*, you will see that it is far from portable. In fact, it is very
> definitely not portable, and needs specific support for *every single
> supported Operating System*. And while we covered a lot, we did not cover
> all of them.
> So unfortunately, it is impossible to make it the default, I am afraid.

Would it be reasonable to make RUNTIME_PREFIX the default on systems
where we _do_ have that support? AFAIK there is no downside to having it
enabled (minus a few syscalls to find the prefix, I suppose, but I
assume that's negligible).

I.e., a patch to config.mak.uname (and possibly better support for
_disabling_ it, though I think "make RUNTIME_PREFIX=" would probably