Re: linux-next: build warning after merge of the kbuild tree

From: Dominique Martinet
Date: Thu Dec 10 2020 - 01:48:34 EST


Stephen Rothwell wrote on Thu, Dec 10, 2020:
> On Wed, 9 Dec 2020 14:01:30 +0100 Dominique Martinet <asmadeus@xxxxxxxxxxxxx> wrote:
> >
> > I guess it's possible to make kbuild check both sbin and PATH, would
> > that be acceptable?
>
> I guess so. But, have you actually found any setup where depmod is not
> /sbin/depmod? i.e. what problem are you trying to solve. As far as I
> can see all this change does is (ever so slightly) slow down the build
> for no gain.

On nixos, depmod is in /run/current-system/sw/bin/depmod (as a link to
/nix/store/r3r39rzsrikdsv68rvswn3hhank706gj-kmod-27/bin/depmod or
wherever the current version wants to be).
developers on guix probably face the same problem.

There is no sbin, the only things in /bin is sh, and in /usr/bin env as
I think is mandated by posix.

For their official builds they just modify the build scripts in place
before starting the build, but for dev as I keep rebasing it's annoying
to keep a couple of local patches just for this.
I could obviously manually create a link from /sbin/depmod to the
current system's but that doesn't solve the problem for all other nixos
users.

I'll send an updated patch later today..
--
Dominique