[Cin] libdpx c++ check

[Andrew Randrianasulu]

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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