cmake not working properly?

[hello world :-)]

Just installed cmake (I had uninstalled it earlier to save space). Downloaded glshim and tried to build it.
http://i.imgur.com/U83WBlV.png

Help?

[Paeryn]

For some reason cmake hasn't detected a C++ compiler. Does /usr/bin/c++ exist on your system? If not then you need to install g++ (/usr/bin/c++ is usually a link to /usr/bin/g++ via /etc/alternatives/c++).

If you do have a working C++ compiler then you need to look at why cmake didn't detect it, CMakeFiles/CMakeError.log along with CMakeFiles/CMakeOutput.log should give some hint as to what was tried and what failed.

[hello world :-)]

For some reason cmake hasn't detected a C++ compiler. Does /usr/bin/c++ exist on your system? If not then you need to install g++ (/usr/bin/c++ is usually a link to /usr/bin/g++ via /etc/alternatives/c++).

If you do have a working C++ compiler then you need to look at why cmake didn't detect it, CMakeFiles/CMakeError.log along with CMakeFiles/CMakeOutput.log should give some hint as to what was tried and what failed.

Thanks, that worked. Slightly off-topic, does anybody know what's wrong here?
http://i.imgur.com/iWzPmB9.png

I mean, I know a file/directory is missing, but should it be there or not, and what can I do to make it work?
The contents of the directory referenced:
http://i.imgur.com/hyu7Qz8.png

[Paeryn]

You need to install the libx11-dev package to get the main X11 library header files. Header files for libraries aren't usually installed by default, generally you need to install the corresponding *-dev package to get them. There may be other X11 libraries that need their *-dev packages installing too depending on what glshim uses.