[llvm-dev] Incorrect / missing dependencies in llvm build?

[mats petersson via llvm-dev]

Thanks, at least I know I'm not imagining or doing something really daft! ;)

My cmake skills are near 0%, so not sure I can fix, but perhaps I can at
least raise a bug? ;)

--
Mats

On 16 November 2016 at 20:28, Martin J. O'Riordan <
martin.oriordan at movidius.com> wrote:

> I sometimes see this with a clean build and most often it is
> 'Attributes.inc' that is missing.  I usually have to 'touch Attributes.td'
> for this.  But I don't know CMake well enough to know how to fix these
> issue properly.
>
>         MartinO
>
> -----Original Message-----
> From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of
> Jonathan Roelofs via llvm-dev
> Sent: 16 November 2016 20:11
> To: mats petersson <mats at planetcatfish.com>; llvm-dev <
> llvm-dev at lists.llvm.org>
> Subject: Re: [llvm-dev] Incorrect / missing dependencies in llvm build?
>
>
>
> On 11/16/16 1:05 PM, mats petersson via llvm-dev wrote:
> > Yesterday, I took latest git version of LLVM, built a makefile using
> > cmake (had to update from my "old" cmake to a newer one, so picked the
> > latest 3.7.0), and ran the resulting makefile with `make -j 8`. This
> > failed with an error, but when I ran make again, it worked fine... My
> > guess as to the problem is that there's one or more dependency that
> > isn't made clear to make (or cmake), and when I run make again, it has
> > built the "previously missing" one.
> >
> > I didn't spend much time debugging this, I may have a go tonight, I
> > just wanted to raise this, in case someone else has seen this and/or
> > has a solution... I was able to reproduce the problem tho', as I built
> > llvm twice with different configurations, and it happened both times -
> > and rerunning make resolved it both times too.
>
> Folks on my team have seen this. From their description of the failure, it
> looked to me like it was a problem with missing dependencies on
> TableGen-generated headers... but I didn't get enough information to be
> able to track down exactly which TU was missing the dep, and I haven't been
> able to reproduce it myself.
>
>
> Jon
>
> >
> > --
> > Mats
> >
> >
> > _______________________________________________
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> > llvm-dev at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> >
>
> --
> Jon Roelofs
> jonathan at codesourcery.com
> CodeSourcery / Mentor Embedded
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>
>
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