[Scons-users] scons-local-2.5.1 build and clean shows random failure

[Bill Deegan]

Seems possible.
If I'm reading correctly.

VariantDir('a/out/linux/x86/release','a')
Is something it could generate?

-Bill

On Tue, Jul 25, 2017 at 4:34 PM, Mats Wichmann <mats at wichmann.us> wrote:

> On 07/25/2017 04:39 PM, Bill Deegan wrote:
> > Yes.. You created dependency cycle..
> > But only after a build.
> > Thus why it's showing up only on clean...
> >
> > Once you build you have output/linux64_build
> > Then you say map . to output/linux_64build  which ends up with a virtual
> > subdirectory via variantdir of output/linux64_build/output/linux_64...
> >
> > see the issue.
> >
> > Variantdirs should never have parent/child relationships.
> >
> > I'd advice instead of using VariantDir(), use variant_dir in your
> > SConscript call to map like this:
> >
> > SConscript('src/SConscript',variant_dir='output/linux64_build/src')
>
> I haven't followed this too closely, but this piques my interest. I have
> a dependency cycle problem - with a particular set of options.  Our
> project has too many ways to build, I'm hammering away at that problem;
> it means there are some rarely-exercised paths through the sconscripts.
> And it means I still don't have enough evidence to narrow down precisely
> where we're causing the problem. Ordinary scenarios work just fine.
>
> Our Variant dir setup looks like this, in a function called with an
> argument of 'dir':
>
>     build_dir = dir + '/out/' + target_os + '/'
>     ... some stuff specific to one target ...
>     build_dir = build_dir + target_arch
>     if env.get('RELEASE'):
>         build_dir = build_dir + '/release/'
>     else:
>         build_dir = build_dir + '/debug/'
>     env.VariantDir(build_dir, dir, duplicate=0)
>
> where the value passed as 'dir' comes from:
>
>     env.GetLaunchDir()
>
> Is that likely to be triggering this "Variantdirs should never have
> parent/child relationships" issue?  Kind of looks like it to me.
>
>
>
>
> _______________________________________________
> Scons-users mailing list
> Scons-users at scons.org
> https://pairlist4.pair.net/mailman/listinfo/scons-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist4.pair.net/pipermail/scons-users/attachments/20170725/75b882e9/attachment.html>