Re: Linking issue, glibc weirdness?

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Excerpts from Allan McRae's message of 2011-12-09 23:32:26 +0100:
> On 10/12/11 08:12, Philipp Überbacher wrote:
> > Excerpts from Allan McRae's message of 2011-12-09 23:04:54 +0100:
> >> On 10/12/11 07:29, Ionut Biru wrote:
> >>> On 12/09/2011 09:25 PM, Philipp wrote:
> >>>> Hi there,
> >>>> I have linking issues with one of the programs I maintain in AUR and I
> >>>> don't quite understand the issue. Here's the output:
> >>>>
> >>>> g++ -Wl,-O1,--sort-common,--as-needed,-z,relro,--hash-style=gnu
> >>>> -L/usr/X11R6/lib -o jmeters jmeters.o styles.o mainwin.o jclient.o
> >>>> mkimage.o meterwin.o -lsndfile -lclxclient -lclthreads -ljack -lpng
> >>>> -lXft -lX11 -lrt
> >>>> /usr/bin/ld: jmeters.o: undefined reference to symbol
> >>>> 'pthread_mutex_trylock@@GLIBC_2.2.5'
> >>>> /usr/bin/ld: note: 'pthread_mutex_trylock@@GLIBC_2.2.5' is defined in
> >>>> DSO /lib/libpthread.so.0 so try adding it to the linker command line
> >>>> /lib/libpthread.so.0: could not read symbols: Invalid operation
> >>>> collect2: ld returned 1 exit status
> >>>> make: *** [jmeters] Error 1
> >>>>
> >>>> The program is jmeters
> >>>> (https://aur.archlinux.org/packages.php?ID=25711).
> >>>>
> >>>> It depends on clthreads (https://aur.archlinux.org/packages.php?ID=3627)
> >>>> which handles the threading stuff.
> >>>>
> >>>> I wonder where this problem comes from. Needles to say that it worked
> >>>> fine in the past. Any ideas?
> >>>>
> >>>> Regards,
> >>>> Philipp
> >>>>
> >>>
> >>> sounds like you don't have a fully up to date toolchain
> >>>
> >>
> >> Actually, it sounds like he does have a fully up-to-date toolchain:
> >> http://fedoraproject.org/wiki/UnderstandingDSOLinkChange
> >>
> >> The output also gives the fix...
> >>>> /usr/bin/ld: note: 'pthread_mutex_trylock@@GLIBC_2.2.5' is defined in
> >>>> DSO /lib/libpthread.so.0 so try adding it to the linker command line
> >>
> >> Allan
> > 
> > Thanks,
> > adding -lpthread helped in this case.
> > I'm not looking forward to patching possibly all the other programs I
> > maintain.
> > 
> 
> FYI, I rebuilt the entire [core] and only one package needed fixed for
> this.  So this does not appear that widespread.
> 
> Allan

Guess it depends..
I only maintain 70 packages in AUR, already found/patched 3, about 65
more to look at ...
Anyway, not much I can do about it.

Regards,
Philipp



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