Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Bálint Réczey]

Hi Andreas,

2017-01-22 13:05 GMT+01:00 Andreas Cadhalpun :
> Hi Bálint.
>
> On 22.01.2017 10:48, Bálint Réczey wrote:
>> 2017-01-22 0:05 GMT+01:00 Andreas Cadhalpun 
>> :
>>> The next FFmpeg upstream release will probably not be in time for the 
>>> freeze,
>>> so I've just cherry-picked this patch.
>>
>> Thanks!
>>
>> I see you have finalized the changelog. Is it ready for upload?
>
> Yes. Sorry for not being clear about that.

No problem, I just want to be sure that the package is ready.

Cheers,
Balint

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Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Andreas Cadhalpun]

Hi Bálint.

On 22.01.2017 10:48, Bálint Réczey wrote:
> 2017-01-22 0:05 GMT+01:00 Andreas Cadhalpun 
> :
>> The next FFmpeg upstream release will probably not be in time for the freeze,
>> so I've just cherry-picked this patch.
> 
> Thanks!
> 
> I see you have finalized the changelog. Is it ready for upload?

Yes. Sorry for not being clear about that.

Best regards,
Andreas

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Re: Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Bálint Réczey]

Hi Andreas,

2017-01-22 0:05 GMT+01:00 Andreas Cadhalpun :
> Hi,
>
> On 19.01.2017 00:05, Bálint Réczey wrote:
>> 2017-01-14 23:54 GMT+01:00 Adrian Bunk :
>>> No, you should only look at the first compile error in that file:
>>>
>>> src/libavformat/chromaprint.c:42:24: error: field 'ctx' has incomplete type
>>>  ChromaprintContext ctx;
>>> ^~~
>>> This is the actual error.
>>>
>>> Whatever the compiler comes up with for cpr->ctx in the place you quoted
>>> might be garbage, but at that point it is already game over.
>>>
>>> Upstream fix:
>>>   
>>> http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=581f93f37ef2e7a00662828ed0348d1edb9041fe
>>>
>>
>> Is there a new FFmpeg upstream release on the horizon or I should just
>> update the package with a cherry-picked patch?
>
> The next FFmpeg upstream release will probably not be in time for the freeze,
> so I've just cherry-picked this patch.

Thanks!

I see you have finalized the changelog. Is it ready for upload?

Cheers,
Balint

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Re: Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Andreas Cadhalpun]

Hi,

On 19.01.2017 00:05, Bálint Réczey wrote:
> 2017-01-14 23:54 GMT+01:00 Adrian Bunk :
>> No, you should only look at the first compile error in that file:
>>
>> src/libavformat/chromaprint.c:42:24: error: field 'ctx' has incomplete type
>>  ChromaprintContext ctx;
>> ^~~
>> This is the actual error.
>>
>> Whatever the compiler comes up with for cpr->ctx in the place you quoted
>> might be garbage, but at that point it is already game over.
>>
>> Upstream fix:
>>   
>> http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=581f93f37ef2e7a00662828ed0348d1edb9041fe
>>
> 
> Is there a new FFmpeg upstream release on the horizon or I should just
> update the package with a cherry-picked patch?

The next FFmpeg upstream release will probably not be in time for the freeze,
so I've just cherry-picked this patch.

Best regards,
Andreas


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Re: Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Bálint Réczey]

Hi,

2017-01-14 23:54 GMT+01:00 Adrian Bunk :
> Control: retitle -1 ffmpeg: ChromaprintContext FTBFS
> Control: forwarded -1 https://trac.ffmpeg.org/ticket/5997
> Control: tags -1 fixed-upstream
>
> On Sat, Jan 14, 2017 at 06:47:02AM +0100, Carl Eugen Hoyos wrote:
>> The relevant lines in the build log are afaict:
>>
>> src/libavformat/chromaprint.c: In function 'write_packet':
>> src/libavformat/chromaprint.c:113:1: error: control reaches end of non-void
>> function [-Werror=return-type]
>>  }
>>  ^
>>
>> The function looks like this:
>>
>> static int write_packet(AVFormatContext *s, AVPacket *pkt)
>> {
>> ChromaprintMuxContext *cpr = s->priv_data;
>> return chromaprint_feed(cpr->ctx, pkt->data, pkt->size / 2) ? 0 :
>> AVERROR(EINVAL);
>> }
>>
>> I guess this is a compiler bug.
>
> No, you should only look at the first compile error in that file:
>
> src/libavformat/chromaprint.c:42:24: error: field 'ctx' has incomplete type
>  ChromaprintContext ctx;
> ^~~
> This is the actual error.
>
> Whatever the compiler comes up with for cpr->ctx in the place you quoted
> might be garbage, but at that point it is already game over.
>
> Upstream fix:
>   
> http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=581f93f37ef2e7a00662828ed0348d1edb9041fe
>
>> Carl Eugen

Is there a new FFmpeg upstream release on the horizon or I should just
update the package with a cherry-picked patch?

Cheers,
Balint

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Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Adrian Bunk]

Control: retitle -1 ffmpeg: ChromaprintContext FTBFS
Control: forwarded -1 https://trac.ffmpeg.org/ticket/5997
Control: tags -1 fixed-upstream

On Sat, Jan 14, 2017 at 06:47:02AM +0100, Carl Eugen Hoyos wrote:
> The relevant lines in the build log are afaict:
> 
> src/libavformat/chromaprint.c: In function 'write_packet':
> src/libavformat/chromaprint.c:113:1: error: control reaches end of non-void 
> function [-Werror=return-type]
>  }
>  ^
> 
> The function looks like this:
> 
> static int write_packet(AVFormatContext *s, AVPacket *pkt)
> {
> ChromaprintMuxContext *cpr = s->priv_data;
> return chromaprint_feed(cpr->ctx, pkt->data, pkt->size / 2) ? 0 : 
> AVERROR(EINVAL);
> }
> 
> I guess this is a compiler bug.

No, you should only look at the first compile error in that file:

src/libavformat/chromaprint.c:42:24: error: field 'ctx' has incomplete type
 ChromaprintContext ctx;
^~~
This is the actual error.

Whatever the compiler comes up with for cpr->ctx in the place you quoted 
might be garbage, but at that point it is already game over.

Upstream fix:
  
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=581f93f37ef2e7a00662828ed0348d1edb9041fe

> Carl Eugen

cu
Adrian

-- 

   "Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
   "Only a promise," Lao Er said.
   Pearl S. Buck - Dragon Seed

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Processed: Re: Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Debian Bug Tracking System]

Processing control commands:

> retitle -1 ffmpeg: ChromaprintContext FTBFS
Bug #851026 [src:ffmpeg] ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined 
reference to `dlopen'
Changed Bug title to 'ffmpeg: ChromaprintContext FTBFS' from 'ffmpeg: FTBFS: 
ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen''.
> forwarded -1 https://trac.ffmpeg.org/ticket/5997
Bug #851026 [src:ffmpeg] ffmpeg: ChromaprintContext FTBFS
Set Bug forwarded-to-address to 'https://trac.ffmpeg.org/ticket/5997'.
> tags -1 fixed-upstream
Bug #851026 [src:ffmpeg] ffmpeg: ChromaprintContext FTBFS
Added tag(s) fixed-upstream.

-- 
851026: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=851026
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems

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Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Carl Eugen Hoyos]

The relevant lines in the build log are afaict:

src/libavformat/chromaprint.c: In function 'write_packet':
src/libavformat/chromaprint.c:113:1: error: control reaches end of non-void 
function [-Werror=return-type]
 }
 ^

The function looks like this:

static int write_packet(AVFormatContext *s, AVPacket *pkt)
{
ChromaprintMuxContext *cpr = s->priv_data;
return chromaprint_feed(cpr->ctx, pkt->data, pkt->size / 2) ? 0 : 
AVERROR(EINVAL);
}

I guess this is a compiler bug.

Carl Eugen

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Bug#851026: ffmpeg: FTBFS: ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'

[Lucas Nussbaum]

Source: ffmpeg
Version: 7:3.2.2-1
Severity: serious
Tags: stretch sid
User: debian...@lists.debian.org
Usertags: qa-ftbfs-20170111 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
> gcc -Wl,-z,relro -Wl,-z,relro -Wl,-z,now -Wl,--as-needed -Wl,-z,noexecstack 
> -fPIE -pie -o /tmp/ffconf.9Jhc2enE /tmp/ffconf.c7zBBEYH.o
> /tmp/ffconf.c7zBBEYH.o: In function `main':
> /tmp/ffconf.bVIjAhhQ.c:2: undefined reference to `dlopen'
> collect2: error: ld returned 1 exit status

The full build log is available from:
   http://aws-logs.debian.net/2017/01/11/ffmpeg_3.2.2-1_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.

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