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Bug#922293: libxcomp3 must use -lpthread or -pthread (undefined symbol: pthread_key_create)



Control: severity -1 important

On  Do 14 Feb 2019 11:33:57 CET, Thomas Arendsen Hein wrote:

Package: libxcomp3
Version: 2:3.5.99.18-1
Severity: normal

Dear Debian Remote Maintainers,

quoting https://lists.debian.org/debian-backports/2019/02/msg00017.html:

* Yuriy M. Kaminskiy <yumkam+debian@gmail.com> [20190214 09:22]:
On 14.02.2019 10:53, Thomas Arendsen Hein wrote:
> I just installed x2goserver from stretch-backports and x2goclient
> from stretch on the same machine. Now x2goclient no longer works
> correctly due to the following error in nxproxy:
>
> $ nxproxy
> /usr/lib/nx/bin/nxproxy: symbol lookup error:
> /usr/lib/x86_64-linux-gnu/libXcomp.so.3: undefined symbol:
> pthread_key_create
>
>
> /usr/lib/x86_64-linux-gnu/libXcomp.so.3 is contained in libxcomp3

This sounds more like bug in libxcomp3 (if it uses symbols from libpthread, it must link to -lpthread [or -pthread]; newer nxproxy likely links to libpthread itself, which hides this bug; still, this must be fixed in libxcomp3); fwiw, dh_shlibdeps even complained about this:

=== https://buildd.debian.org/status/fetch.php?pkg=nx-libs&arch=amd64&ver=2%3A3.5.99.18-1&stamp=1548946175&raw=0
...
dh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info
...
dpkg-shlibdeps: warning: symbol pthread_setspecific used by debian/libxcomp3/usr/lib/x86_64-linux-gnu/libXcomp.so.3.5.99 found in none of the libraries
...
=== cut ===

(this bug seems still present in buster/sid, so I'd suggest filling bug against nx-libs).



I will add a pointer to the Debian bug report on the bpo list.

This needs to be addressed soon. I'll take a look tomorrow.

Mike
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