On Thu, Oct 28, 2021 at 12:44 PM Burt Holzman <b...@fnal.gov> wrote:
>
> On 10/28/2021 8:41 AM, Troy Dawson wrote:
> > On Thu, Oct 28, 2021 at 4:56 AM Götz Waschk <goetz.was...@desy.de
> > <mailto:goetz.was...@desy.de>> wrote:
> >
> >     Am 26.10.21 um 04:27 schrieb Patrick J. LoPresti:
> >     I just like to add that this has already happened to me with an Ubuntu
> >     20.04 LTS container running on
> >     SL7:
> >
> >     [wgs34:U20] ~ % gnuplot-qt
> >     gnuplot-qt: error while loading shared libraries: libQt5Core.so.5:
> >     cannot open shared object file: No such file or directory
> >     [wgs34:U20] ~ % ldd /usr/bin/gnuplot-qt|fgrep Qt5
> >               libQt5Network.so.5 =>
> >     /lib/x86_64-linux-gnu/libQt5Network.so.5
> >     (0x00007f6cf5da9000)
> >               libQt5Gui.so.5 => /lib/x86_64-linux-gnu/libQt5Gui.so.5
> >     (0x00007f6cf57be000)
> >               libQt5Core.so.5 => not found
>
> >
> > That doesn't have much to do with the container running on SL7, and more
> > that your gnuplot-qt was compiled on a different qt5 than is in the
> > container.
> >
> > Without more details I couldn't exactly say more than make sure your
> > gnuplot-qt and qt5 libraries in yoru container are up to date.
>
> Actually, in this particular case, Qt added dependencies on kernel
> syscalls (IIRC renameat2 maybe also getrandom) that show up upstream
> from the current SL7 kernel.
>
> - B


That is good to know.  I would have never guessed that.
Thank you for letting me / us know.
 And Götz, thank you for doing the check on the other kernel.
I would have replied to that one also, but I figured then I'm just
spamming everyone.

I help maintain the KDE Plasma desktop in EPEL 8 / 9, and I'm betting
this is going to come up as a bug somewhere.  It's good to know the
real problem before someone brings me a bug.

Thanks
Troy

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