Bug 409047 – media-video/ffmpeg-0.10.2 - libavfilter/libavfilter.so: undefined reference to `dlopen'

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Dmitry Derevyanko 2012-03-20 18:55:21 UTC]

Ffmpeg-0.10.2 doesn't compile with glibc-2.15 and sys-devel/gcc-4.6.2:
libavfilter/libavfilter.so: undefined reference to `dlopen'
libavfilter/libavfilter.so: undefined reference to `dlclose'
libavfilter/libavfilter.so: undefined reference to `dlsym'
collect2: ld returned 1 exit status

ffpmeg-0.10 compiles successful.
Revdep-rebuild and emerge -1 sys-devel/gcc glibc doesn't helped.

Reproducible: Always

Steps to Reproduce:
1.Emerge =glibc-2.15 =sys-devel/gcc-4.6.2
2.Emerge =ffmpeg-0.10.2
3.ld error
Actual Results:  
collect2: ld returned 1 exit status

Expected Results:  
Compiles successfully.

[Comment 1 Dmitry Derevyanko 2012-03-20 18:56:03 UTC]

Created attachment 306039 [details]
emerge --info

[Comment 2 Dmitry Derevyanko 2012-03-20 18:57:02 UTC]

Created attachment 306041 [details]
ffmpeg's build.log

[Comment 3 Dmitry Derevyanko 2012-03-20 19:09:39 UTC]

Created attachment 306043 [details]
ffmpeg's build.log (now gunziped)

[Comment 4 Dmitry Derevyanko 2012-03-20 19:18:23 UTC]

ffmpeg-9999 doesn't compile too.

[Comment 5 Jeroen Roovers (RETIRED) 2012-03-20 21:13:48 UTC]

Please re-emerge sys-devel/libtool and try again.

[Comment 6 Dmitry Derevyanko 2012-03-21 00:36:13 UTC]

Already tried also it hasn't helped.

[Comment 7 Dmitry Derevyanko 2012-03-21 13:54:36 UTC]

Compiles fine with:
USE="-frei0r" emerge -1 ffmpeg

[Comment 8 Justus Ranvier 2012-03-24 19:07:32 UTC]

I experienced the same problem on 2 our of 3 machines, including a successful compilation with USE="-frei0r".

In case it is relevent all three machines have nearly-identical configurations but the one that successfully compiled with USE="frei0r" is an opteron machine and the two machines which experienced failure were a core 2 quad and a core i7. All have -march=native in CFLAGS.

[Comment 9 Alex 2012-03-30 13:10:19 UTC]

I can confirm this: core i7, building failure with same error, and fix by disabling frei0r use-flag.

[Comment 10 Alexis Ballier 2012-03-30 20:01:01 UTC]

please attach config.log ; frei0r depends on dlopen so this should just get added automatically, unless something has failed in the detection.

please reopen with that info

[Comment 11 Alex 2012-04-04 10:14:21 UTC]

Created attachment 307733 [details]
config.log

Attached congig.log

also, I noticed that it compiles fine with USE="frei0r -fftools_graph2dot"

[Comment 12 Alexis Ballier 2012-04-08 14:36:15 UTC]

(In reply to comment #11)
> Created attachment 307733 [details]
> config.log
> 
> Attached congig.log
> 
> also, I noticed that it compiles fine with USE="frei0r -fftools_graph2dot"

well, yes, but libavfilter remain underlinked, disabling graph2dot just hides the problem :)

[Comment 13 Alexis Ballier 2012-04-08 14:37:11 UTC]

backported a fix to link libavfilter with libdl in 0.10.2 when using frei0r