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

Robert Maynard robert.maynard at kitware.com
Tue Feb 5 16:27:14 EST 2019


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
>>> >>> _______________________________________________
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>>> >>>
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>>> >>>
>>> >> --
>>> >>
>>> >> 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
>>> >
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>>> >
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>>> >
>>
>> --
>>
>> Sankhesh Jhaveri
>>
>> Sr. Research & Development Engineer | Kitware | (518) 881-4417


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