[vtk-developers] BandedPolyDataContourFilter failes to compile on Ubuntu 14

Tue Feb 5 17:06:35 EST 2019

I have no objections, never did. At least it forced me to update to gcc 8.2.

If 4.8.5 is supported Kitware should have a dashboard for it.

Red Hat 7.6 support and Ocyober 31, 2020. So I guess we'll support it until
then.

On Tue, Feb 5, 2019, 1:50 PM Sankhesh Jhaveri <sankhesh.jhaveri at kitware.com
wrote:

> Hi Bill,
>
> I don’t know why the minimum supported version is v4.8.3. However, the
> issue we have is with v4.8.5 which is the default compiler on the latest
> Red Hat OS (See https://access.redhat.com/solutions/19458 ); which merits
> maintaining support for it. Do you concur?
>
> Best,
> Sankhesh
> 
>
> On Tue, Feb 5, 2019 at 4:40 PM Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
>
>> I saw the MR. My question is why are we supporting an old compiler. I
>> think that's what the argument against my first post in this thread.
>>
>> On Tue, Feb 5, 2019, 1:34 PM Sankhesh Jhaveri <
>> sankhesh.jhaveri at kitware.com wrote:
>>
>>> FWIW, I have a MR here:
>>> https://gitlab.kitware.com/vtk/vtk/merge_requests/5157
>>> 
>>>
>>> On Tue, Feb 5, 2019 at 4:32 PM Robert Maynard <
>>> robert.maynard at kitware.com> wrote:
>>>
>>>> I meant GCC 4.8.3/5 is a supported compiler by VTK not GCC itself.
>>>>
>>>> On Tue, Feb 5, 2019 at 4:29 PM Bill Lorensen <bill.lorensen at gmail.com>
>>>> wrote:
>>>> >
>>>> > Gcc 4.8 is no longer maintained. See
>>>> > https://www.gnu.org/software/gcc/gcc-4.8/
>>>> >
>>>> >
>>>> >
>>>> > On Tue, Feb 5, 2019, 1:27 PM Robert Maynard <
>>>> robert.maynard at kitware.com wrote:
>>>> >>
>>>> >> I wasn't paying attention to the thread. GCC 4.8.3 is a supported
>>>> >> compiler and until we remove it we have to accept that we need to
>>>> >> support it.
>>>> >>
>>>> >> On Tue, Feb 5, 2019 at 4:21 PM Bill Lorensen <
>>>> bill.lorensen at gmail.com> wrote:
>>>> >> >
>>>> >> > What happened to the arguments against my complaints about this
>>>> error?
>>>> >> >
>>>> >> > Bill
>>>> >> >
>>>> >> > On Tue, Feb 5, 2019, 9:23 AM Sankhesh Jhaveri <
>>>> sankhesh.jhaveri at kitware.com wrote:
>>>> >> >>
>>>> >> >> Sweet, thanks Rob,
>>>> >> >>
>>>> >> >>
>>>> >> >> On Tue, Feb 5, 2019 at 11:31 AM Robert Maynard <
>>>> robert.maynard at kitware.com> wrote:
>>>> >> >>>
>>>> >> >>> Here is a drop-in wrapper for rotate that has the C++11 behavior
>>>> but
>>>> >> >>> also works with GCC 4.8 ( https://godbolt.org/z/1aVjiZ ).
>>>> >> >>>
>>>> >> >>> On Tue, Feb 5, 2019 at 10:29 AM Bill Lorensen <
>>>> bill.lorensen at gmail.com> wrote:
>>>> >> >>> >
>>>> >> >>> > I don't have a fix. Best if you can look.
>>>> >> >>> >
>>>> >> >>> > I've built gcc 8.2 do I don't have a problem.
>>>> >> >>> >
>>>> >> >>> > Bill
>>>> >> >>> >
>>>> >> >>> > On Tue, Feb 5, 2019, 7:20 AM Sankhesh Jhaveri <
>>>> sankhesh.jhaveri at kitware.com wrote:
>>>> >> >>> >>
>>>> >> >>> >> Bill,
>>>> >> >>> >>
>>>> >> >>> >> It would be great if you have a fix, neverthless. A customer
>>>> noticed the same issue on Red Hat GCC v4.8.5 20150623. The README says VTK
>>>> requires gcc  v4.8.3 or newer.
>>>> >> >>> >>
>>>> >> >>> >> Let me know if you would rather I look into a fix for it.
>>>> >> >>> >>
>>>> >> >>> >> Thanks,
>>>> >> >>> >> Sankhesh
>>>> >> >>> >>
>>>> >> >>> >>
>>>> >> >>> >> On Tue, Feb 5, 2019 at 1:27 AM Bill Lorensen <
>>>> bill.lorensen at gmail.com> wrote:
>>>> >> >>> >>>
>>>> >> >>> >>> Sean,
>>>> >> >>> >>>
>>>> >> >>> >>> Thanks for the suggestion. I was able to build gcc 8.2 on my
>>>> Ubuntu
>>>> >> >>> >>> 14.04 system. Only a little tricky. Took several hours to
>>>> compile.
>>>> >> >>> >>>
>>>> >> >>> >>> I have successfully built VTK HEAD and the VTKExamples. All
>>>> VTK tests passed.
>>>> >> >>> >>>
>>>> >> >>> >>> No more bitching from me (about this topic anyway0>
>>>> >> >>> >>>
>>>> >> >>> >>> The compiler did expose some new warnings which I'll fix.
>>>> >> >>> >>>
>>>> >> >>> >>> Bill
>>>> >> >>> >>>
>>>> >> >>> >>> On Mon, Feb 4, 2019 at 8:38 AM Sean McBride <
>>>> sean at rogue-research.com> wrote:
>>>> >> >>> >>> >
>>>> >> >>> >>> > On Thu, 31 Jan 2019 20:37:32 -0500, David Thompson via
>>>> vtk-developers said:
>>>> >> >>> >>> >
>>>> >> >>> >>> > >I'm not sure it is a good idea to support old compilers
>>>> and distributions:
>>>> >> >>> >>> > >
>>>> >> >>> >>> > >1. Ubuntu 14.04 LTS will lose support from Canonical in 3
>>>> months. I
>>>> >> >>> >>> > >would be surprised if what is in git master is released
>>>> by then. Why
>>>> >> >>> >>> > >should we support platforms no longer supported by their
>>>> distributor?
>>>> >> >>> >>> >
>>>> >> >>> >>> > Is the compiler so tied to the OS?  Bill, can't you
>>>> upgrade your compiler without updating your whole OS?
>>>> >> >>> >>> >
>>>> >> >>> >>> > >2. If we keep forcing workarounds, the next time
>>>> something breaks, then
>>>> >> >>> >>> > >*it* will be the only compiler error. That pattern just
>>>> keeps accruing
>>>> >> >>> >>> > >technical debt. Ultimately, I believe that technical debt
>>>> will push
>>>> >> >>> >>> > >developers away from VTK so I want to avoid it.
>>>> >> >>> >>> > >
>>>> >> >>> >>> > >3. Not too long ago, it was common practice for systems
>>>> in production
>>>> >> >>> >>> > >use to never get patched (lest the patch break what was
>>>> working).
>>>> >> >>> >>> >
>>>> >> >>> >>> > Not that we (programmers collectively) have solved the
>>>> problem of patches always breaking things that work.  It's still the norm.
>>>> :(
>>>> >> >>> >>> >
>>>> >> >>> >>> > >However, security issues and increased connectivity
>>>> prevalent today has
>>>> >> >>> >>> > >pretty much put a stop to this practice and I think that
>>>> translates into
>>>> >> >>> >>> > >a much weaker argument for supporting older systems.
>>>> >> >>> >>> >
>>>> >> >>> >>> > I largely agree, but there are exceptions.
>>>> >> >>> >>> >
>>>> >> >>> >>> > Perhaps less on linux, but newer versions of macOS often
>>>> drop support for older hardware.  So it's not always easy or cheap to just
>>>> keep all software up-to-date.
>>>> >> >>> >>> >
>>>> >> >>> >>> > Cheers,
>>>> >> >>> >>> >
>>>> >> >>> >>> > --
>>>> >> >>> >>> > Sean
>>>> >> >>> >>> >
>>>> >> >>> >>> >
>>>> >> >>> >>>
>>>> >> >>> >>>
>>>> >> >>> >>> --
>>>> >> >>> >>> Unpaid intern in BillsParadise at noware dot com
>>>> >> >>> >>> _______________________________________________
>>>> >> >>> >>> Powered by www.kitware.com
>>>> >> >>> >>>
>>>> >> >>> >>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>> >> >>> >>>
>>>> >> >>> >>> Search the list archives at:
>>>> http://markmail.org/search/?q=vtk-developers
>>>> >> >>> >>>
>>>> >> >>> >>> Follow this link to subscribe/unsubscribe:
>>>> >> >>> >>> https://vtk.org/mailman/listinfo/vtk-developers
>>>> >> >>> >>>
>>>> >> >>> >> --
>>>> >> >>> >>
>>>> >> >>> >> Sankhesh Jhaveri
>>>> >> >>> >>
>>>> >> >>> >> Sr. Research & Development Engineer | Kitware | (518)
>>>> 881-4417
>>>> >> >>> >
>>>> >> >>> > _______________________________________________
>>>> >> >>> > Powered by www.kitware.com
>>>> >> >>> >
>>>> >> >>> > Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>> >> >>> >
>>>> >> >>> > Search the list archives at:
>>>> http://markmail.org/search/?q=vtk-developers
>>>> >> >>> >
>>>> >> >>> > Follow this link to subscribe/unsubscribe:
>>>> >> >>> > https://vtk.org/mailman/listinfo/vtk-developers
>>>> >> >>> >
>>>> >> >>
>>>> >> >> --
>>>> >> >>
>>>> >> >> Sankhesh Jhaveri
>>>> >> >>
>>>> >> >> Sr. Research & Development Engineer | Kitware | (518) 881-4417
>>>>
>>> --
>>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>>> <http://www.kitware.com/> | (518) 881-4417
>>> 
>>>
>> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
> 
>
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