Qt 5.10.0 GCC64bit - No compiler can produce code for this qtversion - x86-linux

[Kontiki]

Hi all,
I'm a brand new Ubuntu user. I normally work on windows (yes, I know... It's why I try to step forward).
After installing Qt 5.10.0 with the only compiler provided (GCC_64), I get this information in the Compile and run / Qtversions :
auto-detected Qt 5.10.0 GCC 64bit /home/user/Qt/5.10.0/gcc_64/bin/qmake with an exclamation mark and this information : No compiler can produce code for this qtversion. Please define one or more compilers for : x86-linux-generic-elf-64bit.

The path is correct, and the qmake file exists in this directory.

On windows, no problem with MinGW 32.

I missed a step, but I don't know which one, and other threads about this same topics are not relevant for me.

I welcome help, if possible.

Thanks

[aha_1980]

Hi and welcom @Kontiki,

So, do you have a compiler /usr/bin/gcc?

If not, please run sudo apt-get install build-essential in a terminal. This should set up at least the minimum needed tools for compiling.

[Kontiki]

Thanks for your help.

I ran the command and install the build-essential. Now I have this other problem :

/usr/bin/ld: cannot find -lGL

Googling on this topic I found this answer : http://stackoverflow.com/a/32184137/878361

but, I'm not sure about the command I must write. Here is a file result of the locate command : [url]http://www.sendbox.fr/f23c0483a0db79cd/testSeekLibgl.txt[/url]

Can you confirm the command to write is, for me :
sudo ln -s /usr/lib/x86_64-linux-gnu/libGLU.so.1 /usr/lib/libGL.so

Another point. Now I have multiple Gcc versions. Which one is the best (more polyvalent) ? 

Thanks again

[jsulm]

@Kontiki Install libglu1-mesa-dev package, no need to creaty any symbolic links.
For more details see http://wiki.qt.io/Building_Qt_5_from_Git

[Kontiki]

Yesss... It works now.

Thanks so much.