Oh yes, this is Sage-6.10. Your system libstdc++.so is incompatible with 
the one from gcc bundled in Sage. Starting with Sage-7 we don't use 
LD_LIBRARY_PATH any more, this will solve your problem.



On Thursday, January 7, 2016 at 7:33:48 PM UTC+1, Robert Samal wrote:
>
> With pleasure!
>
> PATH's: 
>
> samal@kamkoliv:~$ sage -sh -c env | grep PATH
> SAGE_ORIG_LD_LIBRARY_PATH_SET=True
> LIBRARY_PATH=/home/samal/local/SageMath/local/lib:/usr/lib/x86_64-linux-gnu
>
> SAGE_ORIG_PATH=/home/samal/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
>
> LD_LIBRARY_PATH=/home/samal/local/SageMath/local/lib:/home/samal/local/SageMath/local/lib64:/home/samal/local/SageMath/local/lib/R/lib
>
> CPATH=/home/samal/local/SageMath/local/include:/usr/include/x86_64-linux-gnu
> DEFAULTS_PATH=/usr/share/gconf/gnome.default.path
>
> PATH=/home/samal/local/SageMath/build/bin:/home/samal/local/SageMath/src/bin:/home/samal/local/SageMath/local/bin:/home/samal/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
> MANDATORY_PATH=/usr/share/gconf/gnome.mandatory.path
> SAGE_ORIG_PATH_SET=True
>
> PYTHONPATH=/home/samal/local/SageMath/local/lib/python:/home/samal/local/SageMath/local/lib/python/site_packages
> SAGE_ORIG_LD_LIBRARY_PATH=
> WINDOWPATH=2
> SINGULARPATH=/home/samal/local/SageMath/local/share/singular
> GIT_EXEC_PATH=/home/samal/local/SageMath/local/libexec/git-core
>
> linking: 
>
> samal@kamkoliv:~$ sage -sh ldd /usr/bin/eog
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `CXXABI_1.3.9' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmirclient.so.9)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmirclient.so.9)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `CXXABI_1.3.9' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmircommon.so.5)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmircommon.so.5)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `CXXABI_1.3.9' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmirprotobuf.so.3)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libmirprotobuf.so.3)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libboost_system.so.1.58.0)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libprotobuf-lite.so.9)
> /usr/bin/eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: 
> version `GLIBCXX_3.4.21' not found (required by 
> /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.58.0)
>     linux-vdso.so.1 =>  (0x00007ffe63d40000)
>     libeog.so => /usr/lib/eog/libeog.so (0x00007f628d7f8000)
>     libgtk-3.so.0 => /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 
> (0x00007f628cf08000)
>     libgio-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 
> (0x00007f628cb87000)
>     libgirepository-1.0.so.1 => 
> /usr/lib/x86_64-linux-gnu/libgirepository-1.0.so.1 (0x00007f628c953000)
>     libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 
> (0x00007f628c700000)
>     libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 
> (0x00007f628c3f1000)
>     libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 
> (0x00007f628c1d3000)
>     libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f628be09000)
>     libgnome-desktop-3.so.10 => 
> /usr/lib/x86_64-linux-gnu/libgnome-desktop-3.so.10 (0x00007f628bbce000)
>     libpeas-gtk-1.0.so.0 => /usr/lib64/libpeas-gtk-1.0.so.0 
> (0x00007f628b9c0000)
>     libgdk-3.so.0 => /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 
> (0x00007f628b6ec000)
>     libatk-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libatk-1.0.so.0 
> (0x00007f628b4c7000)
>     libpeas-1.0.so.0 => /usr/lib64/libpeas-1.0.so.0 (0x00007f628b2b2000)
>     libexif.so.12 => /usr/lib/x86_64-linux-gnu/libexif.so.12 
> (0x00007f628b06e000)
>     liblcms2.so.2 => /usr/lib/x86_64-linux-gnu/liblcms2.so.2 
> (0x00007f628ae17000)
>     libexempi.so.3 => /usr/lib/x86_64-linux-gnu/libexempi.so.3 
> (0x00007f628aadc000)
>     librsvg-2.so.2 => /usr/lib/x86_64-linux-gnu/librsvg-2.so.2 
> (0x00007f628a8a6000)
>     libgdk_pixbuf-2.0.so.0 => 
> /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0 (0x00007f628a684000)
>     libcairo.so.2 => /usr/lib/x86_64-linux-gnu/libcairo.so.2 
> (0x00007f628a371000)
>     libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 
> (0x00007f628a11c000)
>     libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6289e14000)
>     libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 
> (0x00007f6289ada000)
>     libz.so.1 => /home/samal/local/SageMath/local/lib/libz.so.1 
> (0x00007f62898c0000)
>     libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 
> (0x00007f62896bc000)
>     libpangocairo-1.0.so.0 => 
> /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007f62894af000)
>     libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f628929f000)
>     libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 
> (0x00007f6289099000)
>     libcairo-gobject.so.2 => 
> /usr/lib/x86_64-linux-gnu/libcairo-gobject.so.2 (0x00007f6288e90000)
>     libatk-bridge-2.0.so.0 => 
> /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007f6288c61000)
>     libepoxy.so.0 => /usr/lib/x86_64-linux-gnu/libepoxy.so.0 
> (0x00007f628897b000)
>     libpangoft2-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 
> (0x00007f6288765000)
>     libpango-1.0.so.0 => /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 
> (0x00007f6288517000)
>     libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 
> (0x00007f62882d9000)
>     libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 
> (0x00007f62880b5000)
>     libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 
> (0x00007f6287e99000)
>     libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 
> (0x00007f6287c91000)
>     libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f6287a24000)
>     /lib64/ld-linux-x86-64.so.2 (0x00007f628da6e000)
>     librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f628781c000)
>     libXinerama.so.1 => /usr/lib/x86_64-linux-gnu/libXinerama.so.1 
> (0x00007f6287619000)
>     libXrandr.so.2 => /usr/lib/x86_64-linux-gnu/libXrandr.so.2 
> (0x00007f628740e000)
>     libXcursor.so.1 => /usr/lib/x86_64-linux-gnu/libXcursor.so.1 
> (0x00007f6287204000)
>     libXcomposite.so.1 => /usr/lib/x86_64-linux-gnu/libXcomposite.so.1 
> (0x00007f6287001000)
>     libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 
> (0x00007f6286dfe000)
>     libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 
> (0x00007f6286bbf000)
>     libwayland-cursor.so.0 => 
> /usr/lib/x86_64-linux-gnu/libwayland-cursor.so.0 (0x00007f62869b7000)
>     libwayland-egl.so.1 => /usr/lib/x86_64-linux-gnu/libwayland-egl.so.1 
> (0x00007f62867b5000)
>     libwayland-client.so.0 => 
> /usr/lib/x86_64-linux-gnu/libwayland-client.so.0 (0x00007f62865a7000)
>     libmirclient.so.9 => /usr/lib/x86_64-linux-gnu/libmirclient.so.9 
> (0x00007f6286322000)
>     libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 
> (0x00007f6286110000)
>     libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 
> (0x00007f6285ee7000)
>     libstdc++.so.6 => 
> /home/samal/local/SageMath/local/lib64/libstdc++.so.6 (0x00007f6285bdd000)
>     libgcc_s.so.1 => /home/samal/local/SageMath/local/lib64/libgcc_s.so.1 
> (0x00007f62859c7000)
>     libcroco-0.6.so.3 => /usr/lib/x86_64-linux-gnu/libcroco-0.6.so.3 
> (0x00007f628578c000)
>     libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 
> (0x00007f62853d4000)
>     libpixman-1.so.0 => /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 
> (0x00007f6285127000)
>     libfreetype.so.6 => 
> /home/samal/local/SageMath/local/lib/libfreetype.so.6 (0x00007f6284e90000)
>     libpng12.so.0 => /home/samal/local/SageMath/local/lib/libpng12.so.0 
> (0x00007f6284c6b000)
>     libxcb-shm.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 
> (0x00007f6284a67000)
>     libxcb-render.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render.so.0 
> (0x00007f628485d000)
>     libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 
> (0x00007f628463c000)
>     libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 
> (0x00007f6284432000)
>     libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f628422e000)
>     libatspi.so.0 => /usr/lib/x86_64-linux-gnu/libatspi.so.0 
> (0x00007f6283ffd000)
>     libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 
> (0x00007f6283db1000)
>     libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 
> (0x00007f6283b53000)
>     libthai.so.0 => /usr/lib/x86_64-linux-gnu/libthai.so.0 
> (0x00007f628394a000)
>     libmircommon.so.5 => /usr/lib/x86_64-linux-gnu/libmircommon.so.5 
> (0x00007f628370c000)
>     libmirprotobuf.so.3 => /usr/lib/x86_64-linux-gnu/libmirprotobuf.so.3 
> (0x00007f62834b1000)
>     libboost_system.so.1.58.0 => 
> /usr/lib/x86_64-linux-gnu/libboost_system.so.1.58.0 (0x00007f62832ad000)
>     libprotobuf-lite.so.9 => 
> /usr/lib/x86_64-linux-gnu/libprotobuf-lite.so.9 (0x00007f628307c000)
>     libicuuc.so.55 => /usr/lib/x86_64-linux-gnu/libicuuc.so.55 
> (0x00007f6282ce8000)
>     libbz2.so.1 => /home/samal/local/SageMath/local/lib/libbz2.so.1 
> (0x00007f6282ad8000)
>     libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 
> (0x00007f62828d4000)
>     libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 
> (0x00007f62826ce000)
>     libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 
> (0x00007f628dbca000)
>     libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 
> (0x00007f62824b2000)
>     libdatrie.so.1 => /usr/lib/x86_64-linux-gnu/libdatrie.so.1 
> (0x00007f62822ab000)
>     libboost_filesystem.so.1.58.0 => 
> /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.58.0 (0x00007f6282093000)
>     libicudata.so.55 => /usr/lib/x86_64-linux-gnu/libicudata.so.55 
> (0x00007f62805dc000)
>     liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f62803ba000)
>     libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 
> (0x00007f62800d8000)
>     libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 
> (0x00007f627fec5000)
>
>
> On Thursday, January 7, 2016 at 6:38:53 PM UTC+1, Volker Braun wrote:
>>
>> Can you tell us more about what eog links to?
>>
>> $ sage -sh command -v eog
>> /usr/bin/eog
>> $ sage -sh ldd /usr/bin/eog     # adjust path as necessary
>>
>> Also, are you overriding some paths?
>>
>> $ sage -sh -c env | grep PATH
>>
>>
>>
>> On Thursday, January 7, 2016 at 5:35:00 PM UTC+1, Robert Samal wrote:
>>>
>>>
>>> On Thursday, January 7, 2016 at 5:16:38 PM UTC+1, Volker Braun wrote:
>>>>
>>>> What happens if you try to launch the viewer in a sage shell? 
>>>>
>>>> sage -sh xdg-open /path/to/image.png
>>>>
>>>
>>> Good idea, didn't thought of that. I get some informative error messages 
>>> (see below). 
>>> I may try to work it out from here, but if it is a bug that can bite 
>>> more people than just me (as opposed to a messy installation on my laptop), 
>>> it's probably worth if somebody knowledgeable could spell out, what is the 
>>> issue exactly. 
>>>
>>> Here is the output: 
>>>
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `CXXABI_1.3.9' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmirclient.so.9)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmirclient.so.9)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `CXXABI_1.3.9' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmircommon.so.5)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmircommon.so.5)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `CXXABI_1.3.9' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmirprotobuf.so.3)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libmirprotobuf.so.3)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libboost_system.so.1.58.0)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libprotobuf-lite.so.9)
>>> eog: /home/samal/local/SageMath/local/lib64/libstdc++.so.6: version 
>>> `GLIBCXX_3.4.21' not found (required by 
>>> /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.58.0)
>>>
>>>
>>>
>>>
>>>
>>>  
>>>
>>>>
>>>>
>>>>
>>>>  
>>>>
>>>
>>>>
>>>> On Thursday, January 7, 2016 at 4:49:44 PM UTC+1, Robert Samal wrote:
>>>>>
>>>>> Hi, 
>>>>>
>>>>> during some recent update of my laptop, sage ceased to show pictures 
>>>>> from command-line. 
>>>>> That is, for instance: 
>>>>>
>>>>> sage: plot(x^2, [x,0,1])
>>>>> Yields output
>>>>> "Launched png viewer for Graphics object consisting of 1 graphics 
>>>>> primitive"
>>>>>
>>>>> Except no png viewer is launched (it used to start external 
>>>>> image-viewer). 
>>>>>
>>>>> The png-files are properly created in the appropriate tmp folder. 
>>>>>
>>>>> Also starting pdf viewer works: 
>>>>> sage: view(x^2)
>>>>> ... starts a pdf viewer with x^2 typeset in tex. 
>>>>>
>>>>> I tried to check the viewer and everything seems to be OK: 
>>>>> sage: from sage.misc.viewer import viewer
>>>>> sage: viewer('pdf')
>>>>> 'xdg-open'
>>>>> sage: viewer('png')
>>>>> 'xdg-open'
>>>>>
>>>>> And, when I try xdg-open in a shell (i.e., outside of sage), then it 
>>>>> open correctly both png and pdf files. 
>>>>>
>>>>> Any ideas? It starts to be quite annoying (the only workaround I found 
>>>>> is to save the plot to a png ...). 
>>>>>
>>>>> My system is ubuntu 15.10, 
>>>>> SageMath Version 6.10, Release Date: 2015-12-18 -- obtained from file 
>>>>> sage-6.10-Ubuntu_15.10-x86_64.tar.bz2. 
>>>>>
>>>>> But it did not work with sage 6.8 and 6.7 either. I'm not sure but I 
>>>>> believe it worked with ubuntu 15.04 (and some previous version of sage). 
>>>>>
>>>>> Thanks in advance for any suggestion, 
>>>>>
>>>>> Robert Samal
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>

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