<div dir="ltr"><div>Problem resolved. </div>Basically, the problem occurred because I used third party drivers (from <a href="http://amd.com">amd.com</a>) to install my AMD graphics card. Most Ubuntu forums recommend that you install repository drivers from the "Additional Drivers" tab/option in Ubuntu Settings. Third party drivers apparently somehow destroy/damage/corrupt the libGL.so link. <div><br></div><div>It is probably possible to somehow repair/reinstall libgl.so and other relevant files, but in my case, I did a clean install of Ubuntu, and then installed the drivers from "Additional Drivers". After that, VTK building and installation gave me no problems. </div><div><br></div><div>- - - TR<br><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 7, 2014 at 11:59 AM, David Gobbi <span dir="ltr"><<a href="mailto:david.gobbi@gmail.com" target="_blank">david.gobbi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">So, this isn't specifically related to VTK anymore, but here are the<br>
things that might be wrong with your system:<br>
<br>
- you might be missing the libgl1-mesa-glx package, which<br>
provides /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2<br>
<br>
- the links might have been broken during the installation of<br>
third-party OpenGL drivers (in which case you should<br>
hunt down all the broken links and fix them as best you can).<br>
<br>
If you discover exactly what was wrong, please post your solution<br>
on the list in case other linux users encounter similar problems.<br>
<br>
- David<br>
<div><div class="h5"><br>
<br>
On Tue, Oct 7, 2014 at 9:43 AM, TANWEER RASHID <<a href="mailto:trash001@odu.edu">trash001@odu.edu</a>> wrote:<br>
> Yes, the link appears to be broken.<br>
><br>
> - - - TR<br>
><br>
><br>
><br>
> On Tuesday, October 7, 2014, David Gobbi <<a href="mailto:david.gobbi@gmail.com">david.gobbi@gmail.com</a>> wrote:<br>
>><br>
>> And is it a broken link? Does the file that it is pointing to exist?<br>
>><br>
>><br>
>> On Tue, Oct 7, 2014 at 8:09 AM, TANWEER RASHID <<a href="mailto:trash001@odu.edu">trash001@odu.edu</a>> wrote:<br>
>> > This is what I get for "ls -l /usr/lib/x86_64-linux-gnu/libGL.so"<br>
>> ><br>
>> > lrwxrwxrwx 1 root root 13 May 15 05:41<br>
>> > /usr/lib/x86_64-linux-gnu/libGL.so -><br>
>> > mesa/libGL.so<br>
>> ><br>
>> > On Tue, Oct 7, 2014 at 10:02 AM, David Gobbi <<a href="mailto:david.gobbi@gmail.com">david.gobbi@gmail.com</a>><br>
>> > wrote:<br>
>> >><br>
>> >> So, if I can ask the obvious question, what do you get when you do<br>
>> >> this:<br>
>> >><br>
>> >> ls -l /usr/lib/x86_64-linux-gnu/libGL.so<br>
>> >><br>
>> >> Is it missing? Is it a broken link?<br>
>> >><br>
>> >><br>
>> >> On Tue, Oct 7, 2014 at 7:58 AM, TANWEER RASHID <<a href="mailto:trash001@odu.edu">trash001@odu.edu</a>><br>
>> >> wrote:<br>
>> >> > Hi David,<br>
>> >> ><br>
>> >> > Thanks, but I already have libgl1-mesa-dev installed.<br>
>> >> ><br>
>> >> > - - - TR<br>
>> >> ><br>
>> >> ><br>
>> >> > On Mon, Oct 6, 2014 at 10:49 PM, David Gobbi <<a href="mailto:david.gobbi@gmail.com">david.gobbi@gmail.com</a>><br>
>> >> > wrote:<br>
>> >> >><br>
>> >> >> Hi Tanweer,<br>
>> >> >><br>
>> >> >> I suspect that you are missing some of the ubuntu dev packages.<br>
>> >> >> For libGL.so, get libgl1-mesa-dev:<br>
>> >> >><br>
>> >> >> sudo apt-get install libgl1-mesa-dev<br>
>> >> >><br>
>> >> >> - David<br>
>> >> >><br>
>> >> >><br>
>> >> >><br>
>> >> >> On Mon, Oct 6, 2014 at 2:04 PM, TANWEER RASHID <<a href="mailto:trash001@odu.edu">trash001@odu.edu</a>><br>
>> >> >> wrote:<br>
>> >> >> > Sorry about that. I accidentally sent before I could finish.<br>
>> >> >> ><br>
>> >> >> > Hi,<br>
>> >> >> ><br>
>> >> >> > I am trying to build VTK-5.10.1, but I keep getting an error.<br>
>> >> >> > My OS is 64 bit Ubuntu 14.04 running on Intel i7. I am trying to<br>
>> >> >> > build<br>
>> >> >> > shared libs. When I build static libs, I don't encounter any<br>
>> >> >> > problems.<br>
>> >> >> ><br>
>> >> >> > During Cmake configuration, I am getting the following warnings<br>
>> >> >> > (for<br>
>> >> >> > both<br>
>> >> >> > static and shared):<br>
>> >> >> ><br>
>> >> >> > The target name<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > "/home/trash001/Downloads/VTK5.10.1-build/Utilities/vtkhdf5/H5Edefin.h"<br>
>> >> >> > is<br>
>> >> >> > unknown in this context.<br>
>> >> >> > This warning is for project developers. Use -Wno-dev to suppress<br>
>> >> >> > it.<br>
>> >> >> ><br>
>> >> >> > CMake Warning (dev) at Utilities/vtkhdf5/src/CMakeLists.txt:614<br>
>> >> >> > (ADD_CUSTOM_COMMAND):<br>
>> >> >> > Policy CMP0040 is not set: The target in the TARGET signature of<br>
>> >> >> > add_custom_command() must exist. Run "cmake --help-policy CMP0040"<br>
>> >> >> > for<br>
>> >> >> > policy details. Use the cmake_policy command to set the policy and<br>
>> >> >> > suppress this warning.<br>
>> >> >> ><br>
>> >> >> > The target name<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > "/home/trash001/Downloads/VTK5.10.1-build/Utilities/vtkhdf5/H5version.h"<br>
>> >> >> > is<br>
>> >> >> > unknown in this context.<br>
>> >> >> > This warning is for project developers. Use -Wno-dev to suppress<br>
>> >> >> > it.<br>
>> >> >> ><br>
>> >> >> > CMake Warning (dev) at Utilities/vtkhdf5/src/CMakeLists.txt:621<br>
>> >> >> > (ADD_CUSTOM_COMMAND):<br>
>> >> >> > Policy CMP0040 is not set: The target in the TARGET signature of<br>
>> >> >> > add_custom_command() must exist. Run "cmake --help-policy CMP0040"<br>
>> >> >> > for<br>
>> >> >> > policy details. Use the cmake_policy command to set the policy and<br>
>> >> >> > suppress this warning.<br>
>> >> >> ><br>
>> >> >> > The target name<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > "/home/trash001/Downloads/VTK5.10.1-build/Utilities/vtkhdf5/H5overflow.h"<br>
>> >> >> > is unknown in this context.<br>
>> >> >> > This warning is for project developers. Use -Wno-dev to suppress<br>
>> >> >> > it.<br>
>> >> >> ><br>
>> >> >> > Could not find extension loader. Extensions disabled.<br>
>> >> >> ><br>
>> >> >> > Configuring done<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > The build error (for building shared libs) is as follows:<br>
>> >> >> ><br>
>> >> >> > [ 30%] Built target vtkEncodeString<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTBitmapGlyph.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTBitmapGlyphRenderOpenGL.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTCharmap.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTFace.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTFont.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGLBitmapFont.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGLBitmapFontRenderOpenGL.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGLPixmapFont.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGLPixmapFontRenderOpenGL.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGlyph.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTGlyphContainer.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTLibrary.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTPixmapGlyph.cpp.o<br>
>> >> >> > [ 30%] Building CXX object<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTPixmapGlyphRenderOpenGL.cpp.o<br>
>> >> >> > [ 31%] Building CXX object<br>
>> >> >> > Utilities/ftgl/CMakeFiles/vtkftgl.dir/src/FTSize.cpp.o<br>
>> >> >> > make[2]: *** No rule to make target<br>
>> >> >> > `/usr/lib/x86_64-linux-gnu/libGL.so',<br>
>> >> >> > needed by `bin/libvtkftgl.so.5.10.1'. Stop.<br>
>> >> >> > make[1]: *** [Utilities/ftgl/CMakeFiles/vtkftgl.dir/all] Error 2<br>
>> >> >> > make: *** [all] Error 2<br>
>> >> >> > trash001@MSVEDE09:~/Downloads/VTK5.10.1-build$<br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> ><br>
>> >> >> > --<br>
>> >> >> > Tanweer Rashid<br>
>> >> >> > MSVE Dept.<br>
>> >> >> > Old Dominion University<br>
>><br>
>><br>
>> --<br>
>><br>
><br>
><br>
> --<br>
> Tanweer Rashid<br>
> MSVE Dept.<br>
> Old Dominion University<br>
><br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>Tanweer Rashid<br>MSVE Dept.<br><div>Old Dominion University</div>
</div>