[FFmpeg-devel] [PATCH] configure: use c++98 for c++ files

Richard Kern kernrj at gmail.com
Mon Jun 27 00:00:41 CEST 2016


> On Jun 26, 2016, at 5:55 PM, Michael Niedermayer <michael at niedermayer.cc> wrote:
> 
> On Sun, Jun 26, 2016 at 05:44:11PM -0400, Richard Kern wrote:
>> 
>>> On Jun 26, 2016, at 5:26 PM, Michael Niedermayer <michael at niedermayer.cc> wrote:
>>> 
>>> On Sun, Jun 26, 2016 at 05:22:01PM -0400, Richard Kern wrote:
>>>> 
>>>>> On Jun 26, 2016, at 5:10 PM, Michael Niedermayer <michael at niedermayer.cc> wrote:
>>>>> 
>>>>> On Sun, Jun 26, 2016 at 04:44:40PM -0400, Rick Kern wrote:
>>>>>> Use c++98 standard instead of c++11.
>>>>>> 
>>>>>> Signed-off-by: Rick Kern <kernrj at gmail.com>
>>>>>> ---
>>>>>> configure | 2 +-
>>>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>>> 
>>>>>> diff --git a/configure b/configure
>>>>>> index 19aea61..76d2d27 100755
>>>>>> --- a/configure
>>>>>> +++ b/configure
>>>>>> @@ -4529,7 +4529,7 @@ fi
>>>>>> 
>>>>>> add_cppflags -D_ISOC99_SOURCE
>>>>>> add_cxxflags -D__STDC_CONSTANT_MACROS
>>>>>> -add_cxxflags -std=c++11
>>>>>> +add_cxxflags -std=c++98
>>>>> 
>>>>> should this not be check_cxxflags ?
>>>> 
>>>> Some c++ standard needs to be there to override the -std=c99 that gets pulled in from CFLAGS.
>>> 
>>> but does every compiler support -stc=... ?
>>> if one doesnt the c99 case would not have been added
>> 
>> What about filtering the -std=c99 out of CFLAGS in the CXXFLAGS assignment?
> 
> have you confirmed that -std=c99 is the problem ?

Yes, it dies at:
error: invalid argument '-std=c99' not allowed with 'C++/ObjC++'
make: *** [libavdevice/decklink_common.o] Error 1

> 
> [...]
> -- 
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> 
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