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

[Robert Maynard]

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 Gcc 4.8 is no longer maintained.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
>> >>> >>> _______________________________________________
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>> >>> >>>
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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