linux-kernel - Re: [PATCH v4 00/17] media: blackfin: bfin

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Date:	Fri, 24 Apr 2015 12:04:11 +0200
From:	Hans Verkuil <hverkuil@...all.nl>
To:	Scott Jiang <scott.jiang.linux@...il.com>
CC:	Lad Prabhakar <prabhakar.csengg@...il.com>,
	LMML <linux-media@...r.kernel.org>,
	adi-buildroot-devel@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 00/17] media: blackfin: bfin_capture enhancements

On 04/10/2015 12:42 PM, Scott Jiang wrote:
> Hi Hans,
> 
>>>
>>> Hans, I tried to use v4l2-compliance but it failed to compile. Sorry
>>> for telling you it have passed compilation because I forgot to use
>>> blackfin toolchain.
>>> ./configure --without-jpeg  --host=bfin-linux-uclibc --disable-libv4l
>>>
>>> The main problem is there is no argp.h in uClibc, how to disable checking this?
>>>
>>> checking for argp.h... no
>>> configure: error: Cannot continue: argp.h not found
>>>
>>> Scott
>>>
>>
>> Hi Scott,
>>
>> Can you try this patch for v4l-utils? It makes argp optional, and it should
>> allow v4l2-compliance to compile with uclibc (unless there are more problems).
>>
>> I'm no autoconf guru, so I'm not certain if everything is correct, but it
>> seemed to do its job when I remove argp.h from my system.
>>
> 
> Yes, I can pass configure now. But there is another error when make
> 
> make[3]: Entering directory
> `/home/scott/projects/git-kernel/v4l-utils/lib/libdvbv5'
>   CC     libdvbv5_la-parse_string.lo
> parse_string.c:26:19: error: iconv.h: No such file or directory
> parse_string.c: In function 'dvb_iconv_to_charset':
> parse_string.c:316: error: 'iconv_t' undeclared (first use in this function)
> 
> I tried to pass this library, while --without-libdvbv5 is not supported.
> 

If you can pass the configure step, then you should be able to run this:

cd utils/v4l2-compliance
cat *.cpp >x.cpp
g++ -o v4l2-compliance x.cpp -I . -I ../../include/ -DNO_LIBV4L2

(you need to use the right toolchain here, of course)

If this compiles OK, then you have a v4l2-compliance tool that you can
use.

Sorry for the delay in answering.

Regards,

	Hans
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