[Cin] libdpx c++ check

[Andrew Randrianasulu]

On Saturday, April 9, 2022, Phyllis Smith <phylsmith2017 at gmail.com> wrote:

> I booted ubuntu 16 and it has gcc 5.4.  This patch worked just fine.
>
> Please let me know if check_cxx11_for_libdpx.diff is no longer needed ???
> and if I should check in the above.
>

I checked new patch (from my memory) on Slackware and it worked. So yeah, I
think this check in configure.ac is not needed anymore.



> On Thu, Apr 7, 2022 at 12:56 PM Andrew Randrianasulu <
> randrianasulu at gmail.com> wrote:
>
>> try this on machine with gcc 5.5 or earlier g++ compiler? (note there is
>> typo in patch filename - must be libdpx)
>>
>> On Thursday, April 7, 2022, Andrew Randrianasulu <randrianasulu at gmail.com>
>> wrote:
>>
>>>
>>>
>>> On Thursday, April 7, 2022, Phyllis Smith <phylsmith2017 at gmail.com>
>>> wrote:
>>>
>>>>
>>>> That is a better solution so I will wait to see what you come up with.
>>>> The first patch, which had problems, would cause problems for many more
>>>> people and we really, really want as many people to be able to build
>>>> themselves without having to add new requirements that might not even work
>>>> for older systems like ubuntu 16.
>>>>
>>>
>>> I think we can add this specific m4 macro from autoconf archive to our
>>> own m4 directory in source tree, but I'll test both ideas. New compiler
>>> defaults to new c++ mode anyway, but I guess old ones  also migh have some
>>> bugs in c++ support, so changing compilation mode for whole program sounds
>>> more dangerous than just for one file.
>>>
>>>>
>>>> also, while watching paint dry.. err, watching cin compile on emulated
>>>>> powerpc I noticed we already override cxx standard for fileexr (look for
>>>>> c++11 in cinelerra/Makefile) so hopefully same can be done for filedpx
>>>>>
>>>>>
>>>>>
>>>>> On Tuesday, April 5, 2022, Andrew Randrianasulu <
>>>>> randrianasulu at gmail.com> wrote:
>>>>>
>>>>>> ow.
>>>>>>
>>>>>> does autoreconf fixes this?
>>>>>>
>>>>>> https://stackoverflow.com/questions/27673292/ax-cxx-
>>>>>> compile-stdcxx-11-macro-not-found
>>>>>>
>>>>>> autoreconf --install --force
>>>>>>
>>>>>> if not - look for aditional autoconf-archive package? (not sure about
>>>>>> fedora's packaging)
>>>>>>
>>>>>> On Tuesday, April 5, 2022, Phyllis Smith <phylsmith2017 at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> When applied, this patch immediately stops the build on Fedora 32
>>>>>>> with the following error:
>>>>>>> checking whether we are using the GNU C++ compiler... yes
>>>>>>> checking whether g++ accepts -g... yes
>>>>>>> checking dependency style of g++... none
>>>>>>> ./configure: line 4828: syntax error near unexpected token `11,'
>>>>>>> ./configure: line 4828: `AX_CXX_COMPILE_STDCXX(11, noext, optional)'
>>>>>>> make: *** No targets specified and no makefile found.  Stop.
>>>>>>> mv: cannot stat 'Makefile': No such file or directory
>>>>>>>
>>>>>>> On Tue, Apr 5, 2022 at 2:14 AM Andrew Randrianasulu via Cin <
>>>>>>> cin at lists.cinelerra-gg.org> wrote:
>>>>>>>
>>>>>>>> also add pkg-config based check for libva's location
>>>>>>>>
>>>>>>>> alsoI think my patches for aborting compile if withzmpeg = no and
>>>>>>>> v4l2/dvb = yes need  || test case for xauto...
>>>>>>>>
>>>>>>>> ---------- Forwarded message ----------
>>>>>>>> From: *Андрей Рандрианасулу* <randrik at mail.ru>
>>>>>>>> Date: Tuesday, April 5, 2022
>>>>>>>> Subject: libdpx c++ check
>>>>>>>> To: randrianasulu <randrianasulu at gmail.com>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Андрей  Рандрианасулу
>>>>>>>>
>>>>>>>> --
>>>>>>>> Cin mailing list
>>>>>>>> Cin at lists.cinelerra-gg.org
>>>>>>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>>>>>>
>>>>>>>
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