I am trying to compile the example from the following website: <http://www.opengl-tutorial.org/beginners-tutorials/tutorial-1-opening-a-window/>

At first `CMake` was unable to find libGL.so, so I pointed it to where the lib is (/usr/lib/x86\_64-linux-gnu/mesa/libGL.so) in the txt file. After that I tried `make all` and this gave me the following `error: /usr/bin/ld: cannot find -lGL`. According to what I found this means that ld is unable to find libGL.so, but if I type `locate libGL` I get the following response:

```
/home/jacko/.local/share/Steam/SteamApps/common/Cave Story+/lib/libGLU.so.1
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libGLEW.so.1.6
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libGLEW.so.1.6.0
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libGLU.so.1
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libGLU.so.1.3.08004
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/share/doc/nvidia-cg-toolkit/examples/Tools/trace/libGL.so.1.gz
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime.old/i386/usr/lib/i386-linux-gnu/libGLEW.so.1.6
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime.old/i386/usr/lib/i386-linux-gnu/libGLEW.so.1.6.0
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime.old/i386/usr/lib/i386-linux-gnu/libGLU.so.1
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime.old/i386/usr/lib/i386-linux-gnu/libGLU.so.1.3.08004
/home/jacko/.local/share/Steam/ubuntu12_32/steam-runtime.old/i386/usr/share/doc/nvidia-cg-toolkit/examples/Tools/trace/libGL.so.1.gz
/opt/cave-story-plus/lib64/libGLU.so.1
/usr/lib/i386-linux-gnu/libGLU.so.1
/usr/lib/i386-linux-gnu/libGLU.so.1.3.1
/usr/lib/i386-linux-gnu/mesa/libGL.so.1
/usr/lib/i386-linux-gnu/mesa/libGL.so.1.2.0
/usr/lib/x86_64-linux-gnu/libGLU.a
/usr/lib/x86_64-linux-gnu/libGLU.so
/usr/lib/x86_64-linux-gnu/libGLU.so.1
/usr/lib/x86_64-linux-gnu/libGLU.so.1.3.1
/usr/lib/x86_64-linux-gnu/mesa/libGL.so
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2.0
/usr/lib/x86_64-linux-gnu/qtcreator/libGLSL.so
/usr/lib/x86_64-linux-gnu/qtcreator/libGLSL.so.1
/usr/lib/x86_64-linux-gnu/qtcreator/libGLSL.so.1.0
/usr/lib/x86_64-linux-gnu/qtcreator/libGLSL.so.1.0.0
/usr/lib/x86_64-linux-gnu/qtcreator/plugins/Nokia/libGLSLEditor.so
/usr/lib32/libGL.so

```

Which looks to me like libGL is fully available.

also:

```
~$ sudo apt-get install libgl1-mesa-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libgl1-mesa-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

```

I am running Xubuntu 12.10 with opensource AMD drivers.