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Choose non-default compiler for my CMake project in QtCreator

  • How to choose a specific compiler to be used in a CMake project.
    I'm developing on Mac OS 10.9.4 using Qt Creator v3.2.1 and want to use a special OMP compatible gcc compiler (gcc-mp-4.8).

    I'm aware of the "Compilers" and "Kits" sections in the Build & Run options. However, if I introduce my special compiler and choose the kit of my choice, it still won't use the compiler that I've specified.

    If I check the CMakeCache.txt (with ccmake) I see that the default c++ compiler is in use: /usr/bin/c++
    If I build the CMake source directly with CMake (outside of Qt Creator) everything works well:
    @CC=gcc-mp-4.8 CXX=g++-mp-4.8 cmake <path/to/CMakeLists.txt>@

    What did I do wrong that QtCreator does not apply my choice?

    Here are some screenshots of the relevant qtcreator settings:
    Build CMake project:

    Thanks for any sort of help!

  • Lifetime Qt Champion


    Did you also compile a version of Qt with that compiler ? (Just guessing here)

    You should also try the qt-creator IRC channel/mailing list. You'll find there Qt Creator's developers/maintainers (this forum is more user oriented)

  • I don't need Qt for this specific project, hence I've set the Qt Version to None in my kit (see screenshot). Thanks for the hint with the IRC channel. Will try to send a message there.

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