Re: wip/py-torch: Suggestions needed

[Roland Illig <roland.illig%gmx.de@localhost>]

Am 15.07.2022 um 20:38 schrieb Mayuresh:
> On Fri, Jul 15, 2022 at 10:25:38PM +0530, Mayuresh wrote:
> > When setup.py runs following error occurs:
> >      fatal: not a git repository (or any of the parent directories): .git
> Based on the package's README, trying something like this:
>
> post-extract:
>          cd ${WRKSRC}
>          git submodule sync
>          git submodule update --init --recursive --jobs 0
>
> Strangely I get:
>
> # make post-extract
> cd /usr/local/netbsd/work/wip/py-torch/work/pytorch-1.12.0
> make: exec(cd) failed (No such file or directory)
> *** Error code 1
>
> Actually the directory is present. Not sure why cd to it gives error.

This error message is a bit tricky, as it is not 'cd' that gives the
error. Instead, the error message comes from 'make: exec(cd)'.

When make runs on NetBSD in its "native" mode, it tries to be extra fast
by not running "simple" shell commands through system(3) but uses
execvp(3) instead. There is no /bin/cd or /usr/bin/cd, as these would
not work, therefore make(1) fails with this error message.

As soon as a shell command includes a ';' or '&', make(1) falls back to
running the commands through system(3), that's why you don't get this
error for commands like 'cd /somewhere && pwd'.

The proper fix, as you already discovered, is to join the shell command
lines using backslashes.

Roland