Re: Please help test the new v4l-subdev support in v4l2-compliance

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On 02/05/2018 05:59 PM, Hans Verkuil wrote:
> On 02/05/2018 05:55 PM, Mauro Carvalho Chehab wrote:
>> Em Mon, 5 Feb 2018 14:37:29 -0200
>> Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> escreveu:
>>
>>> Em Mon, 5 Feb 2018 08:21:54 -0800
>>> Tim Harvey <tharvey@xxxxxxxxxxxxx> escreveu:
>>>
>>>> Hans,
>>>>
>>>> I'm failing compile (of master 4ee9911) with:
>>>>
>>>>   CXX      v4l2_compliance-media-info.o
>>>> media-info.cpp: In function ‘media_type media_detect_type(const char*)’:
>>>> media-info.cpp:79:39: error: no matching function for call to
>>>> ‘std::basic_ifstream<char>::basic_ifstream(std::__cxx11::string&)’
>>>>   std::ifstream uevent_file(uevent_path);
>>>>                                        ^  
>>>
>>> Btw, while on it, a few days ago, I noticed several class warnings when
>>> building v4l-utils on Raspbian, saying that it was using some features
>>> that future versions of gcc would stop using at qv4l2. See enclosed.
>>>
>>> I didn't have time to look on them.
>>
>> FYI, it still happens with today's upstream's version:
>>
>> 	4ee99116d0ec (HEAD, origin/master, origin/HEAD) v4l2-ctl: improve the fps calculation when streaming
>>
>> $ gcc --version
>> gcc (Raspbian 6.3.0-18+rpi1) 6.3.0 20170516
>> Copyright (C) 2016 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions.  There is NO
>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> My guess is that it is a bogus message from gcc 6.
> 
> Regards,
> 
> 	Hans
> 

See: https://gcc.gnu.org/ml/gcc/2017-05/msg00073.html

Nothing to worry about.

	Hans



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