[winswitch] xpra unuseable on CentOS 5

Antoine Martin antoine at nagafix.co.uk
Sat Nov 8 11:00:14 GMT 2014

>> [...]
>> What toolkit is this application written in?
> The application is Cadence. 
> Good question, I assume it is plain X11.
Looks like it.
> ldd spits out:
>         libXext.so.6 => /usr/lib64/libXext.so.6 (0x0000003417600000)
>         libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003414600000)
>         librt.so.1 => /lib64/librt.so.1 (0x0000003415200000)
>         libXt.so.6 => /usr/lib64/libXt.so.6 (0x0000003415a00000)
>         libX11.so.6 => /usr/lib64/libX11.so.6 (0x0000003416600000)
>         libGL.so.1 => /usr/lib64/libGL.so.1 (0x00002b55038e9000)
>         libGLU.so.1 => /usr/lib64/libGLU.so.1 (0x00002b5503b63000)
>         libnsl.so.1 => /lib64/libnsl.so.1 (0x0000003418e00000)
>         libelf.so.1 => /usr/lib64/libelf.so.1 (0x0000003416a00000)
>         libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003423800000)
>         libm.so.6 => /lib64/libm.so.6 (0x0000003414a00000)
>         libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x000000341f800000)
>         libc.so.6 => /lib64/libc.so.6 (0x0000003413e00000)
>         libdl.so.2 => /lib64/libdl.so.2 (0x0000003414200000)
>         libXrender.so.1 => /usr/lib64/libXrender.so.1 (0x0000003418200000)
>         libXau.so.6 => /usr/lib64/libXau.so.6 (0x00002b5503de8000)
>         /lib64/ld-linux-x86-64.so.2 (0x0000003413a00000)
>         libSM.so.6 => /usr/lib64/libSM.so.6 (0x000000341be00000)
>         libICE.so.6 => /usr/lib64/libICE.so.6 (0x000000341a600000)
>         libXdmcp.so.6 => /usr/lib64/libXdmcp.so.6 (0x0000003416e00000)
>         libXxf86vm.so.1 => /usr/lib64/libXxf86vm.so.1 (0x0000003414e00000)
>         libdrm.so.2 => /usr/lib64/libdrm.so.2 (0x0000003415600000)
>> Can you post sample code?
> Which sample code?
> Source code? That's gonna be difficult because Cadence is closed source, proprietary and protected.
Then the time I can dedicate to this thing is going to be very limited.
Debugging third party applications is hard, closed source ones even more
so, and if I can't even run it myself... near impossible.
Also, from my experience, closed source apps also tend to be more broken.
(less likely to use toolkits, more likely to reinvent the wheel.. and
get things wrong)
>> [...]
>>> Is there anything I could do w/o upgrading from CentOS 5?
>> No. Nothing worth the effort.
> Oh man, I could cry.
> I just looked, the "hack" (where I installed xpra and parts of python as user in my home directory) which worked so nicely is "xpra v0.11.2" but it uses "Python 2.7.5+".
I don't understand this bit.
> I think it's nearly impossible to get this machine upgraded but I may try it at least. If so, what would be the python and/or CentOS version with which everything should work? CentOS 6?
Sure, CentOS 6 or 7 both work well enough.
CentOS 6 is a bit dated already.
CentOS 7 is a bit annoying as a client OS because it lacks a system tray
in the default gnome desktop, much better as a server OS (up to date
python and libs).


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