Re: GNU Make 4.2 Query

[nikhil jain]

Remote exec design is quite easy. I just filled in remote-stub.c with
enough code to execute the commands remotely and getting the status back.

On Mon, 2 Sep 2019, 21:06 Paul Smith, <address@hidden> wrote:

> On Mon, 2019-09-02 at 20:48 +0530, nikhil jain wrote:
> > So currently in my remote execution design these 2 commands execute
> > on different host.
> >
> > So, does ONESHELL will make these 2 commands on the same host ?
>
> Well, I don't know how your remote execution design works.
>
> However, .ONESHELL tells make to invoke the entire recipe in a single
> shell invocation so I assume that will cause them all to be invoked on
> a single remote host, yes.
>
> See:
>
> https://www.gnu.org/software/make/manual/html_node/One-Shell.html
>
>
> Note, though, that this can break recipes if they are written in such a
> way that they expect each line to be invoked in a separate shell.  For
> one simple example:
>
>   foo:
>           cd foo && echo in foo
>           cd bar && echo in bar
>
> will work very differently with and without .ONESHELL.
>
> More discussion is in the manual, above.
>
> If your makefiles have these assumptions built into their recipes, and
> you can't change them, you may not be able to take advantage of this.
>
>