how to make QtCreator to use correct version of gcc and g++?

Kofr

OS Linux mint
There are gcc versions 4.7 and 8 installed

$ sudo update-alternatives --config g++
Есть 2 варианта для альтернативы g++ (предоставляет /usr/bin/g++).

  Выбор   Путь          Приор Состояние
------------------------------------------------------------
* 0            /usr/bin/g++-8     800       автоматический режим
  1            /usr/bin/g++-4.7   20        ручной режим
  2            /usr/bin/g++-8     800       ручной режим

Press <enter> to keep the current choice[*], or type selection number:

In QtCreator g++ version of 8 is installed in Kit

And QtCreator uses GCC 4.7
Compile log:
-I/usr/include/c++/4.7 -I/usr/include/c++/4.7/backward -I/usr/lib/gcc/x86_64-linux-gnu/4.7/include -I/usr/local/include -I/usr/lib/gcc/x86_64-linux-gnu/4.7/include-fixed -I/usr/include ...

How to make it work with g++8?

aha_1980

corresponding bug report: https://bugreports.qt.io/browse/QTCREATORBUG-21532

aha_1980

@Kofr

what does ls -l /usr/bin/g++* give?

also, can you provide a compile log with compiler call?

Also note that you should give people some time (24 hours) to answer before asking at the second place (bug tracker).

Thanks!

Kofr

@aha_1980
lrwxrwxrwx 1 root root 21 май 24 13:43 /usr/bin/g++ -> /etc/alternatives/g++
-rwxr-xr-x 1 root root 919832 апр 24 2018 /usr/bin/g++-5
lrwxrwxrwx 1 root root 22 июн 6 05:26 /usr/bin/g++-8 -> x86_64-linux-gnu-g++-8

Unfortunately it is impossible to provide logs as I have deleated gcc 4.7 and all its includes manually from
/usr/include/c++
and
/usr/include/x86_64-linux-gnu/c++/

That solved the problem but not without blood....

kshegunov

The real solution is to provide a separate mkspec file for each of these compilers, the quick (and dirty) solution is to override the compiler in the project file.

Unfortunately it is impossible to provide logs as I have deleated gcc 4.7 and all its includes manually from

That's a really, really bad idea.