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How to install QCA for Qt Creator 5 on a Win7 32bit system



  • Uhm unfortunatley I decided to call it just "Qt" during the installation process :/
    Inside that folder there are some folders called

    • 5.3
    • 5.4
    • Docs
    • Examples
    • Extas
    • Licenses
    • temp
    • Tools
    • vcredist

    There are also some files:

    • components.xml
    • InstallationLog.txt
    • MaintenanceTool.dat
    • MaintenanceTool.exe
    • MaintenanceTool.ini
    • network.xml
    • qt-project.org.html
    • README.txt
    • update.rcc


  • I can reinstall Qt if that helps.


  • Lifetime Qt Champion

    You should be able to get the information from the Maintenance tool



  • Ok, I found Qt ver. 1.0.8 with Qt 5.4 ver. 5.4.0-1 and Qt 5.3 ver. 5.3.2


  • Lifetime Qt Champion

    MSVC ? MinGW ?



  • Oh sorry I missed to open that stuff :/

    • Qt 5.4 MinGW 4.9.1 (32 bit) OpenGL ver. 5.4.0-1, Qt WebEngine ver. 5.4.0-1
    • Qt 5.3 MinGW 4.8.2 (32 bit) ver. 5.3.2-0
    • Tools: MinGW 4.8.2 ver. 4.8.2, MinGW 4.9.1 ver. 4.9.1-2
    • Qt Extras Qt Canvas and QtWebView (doesn't matter at this point I guess)

    No MSVC selected.


  • Lifetime Qt Champion

    No problem, then when calling cmake you should set the generator to "MinGW Makefiles"



  • Ok. make -G "MinGW Makefiles" c:\qca_2-1-0\ says

    CMake Error: Error: generator : MinGW Makefiles
    Does not match the generator used previously: NMake Makefiles Either remove the CMakeCache.txt file and CMakeFiles directory or choose a different binary directory.

    Should I remove the suggested file?


  • Lifetime Qt Champion

    Yes, you can empty the folder you used



  • But this is the cmake folder c:\cmake.
    Do I only have to delete that file or can i specify a folder and how?


  • Lifetime Qt Champion

    Don't call cmake from there.

    Call it either in a build folder inside QCA's sources or at the same level as the sources



  • Ok I copied cmake into the qca folder and it said

    C:\qca_2-1-0>cmake -G "MinGW Makefiles" c:\qca_2-1-0\

    C:\qca_2-1-0>cmake -G "MinGW Makefiles" c:\qca_2-1-0
    CMake Error: Could not create named generator "MinGW CMake Error: The current CMakeCache.txt directory C:/qca_2-1-0/CMakeCache.txt is different than the directory c:/cmake/bin where CMakeCache.txt was created. This may result in binaries being created in the wrong place. If you are not sure,
    reedit the CMakeCache.txt

    Then I copied QCA into a folder inside of the cmake folder and it says

    C:\cmake\bin>cmake -G "MinGW MakeFiles" c:\cmake\bin\qca
    CMake Error: Could not create named generator MinGW MakeFiles


  • Lifetime Qt Champion

    Don't fiddle with these folders like that

    @
    cd C:\qca_2-1-0
    mkdir build
    cd build
    C:\cmake\bin\cmake .. -G "MinGW Makefiles"
    @

    And it should start setting things up.



  • I still get the error
    CMake Error: Could not create named generator MinGW MakeFiles


  • Lifetime Qt Champion

    You are writing "Makefiles" wrong the f is not uppercased



  • Oh sorry :/
    Now I get a new error. Inside the build folder there is a new file called CMakeCache.txt and a new folder called CMakeFiles in wich is also a new file called cmake.check_cache.

    C:\qca_2-1-0\build>c:\cmake\bin\cmake .. -G "MinGW Makefiles"
    CMake Error: CMake was unable to find a build program corresponding to "MinGW Ma
    kefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a differe
    nt build tool.
    CMake Error: CMake was unable to find a build program corresponding to "MinGW Ma
    kefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a differe
    nt build tool.
    CMake Error: Error required internal CMake variable not set, cmake may be not be
    built correctly.
    Missing variable is:
    CMAKE_C_COMPILER_ENV_VAR
    CMake Error: Error required internal CMake variable not set, cmake may be not be
    built correctly.
    Missing variable is:
    CMAKE_C_COMPILER
    CMake Error: Could not find cmake module file: C:/qca_2-1-0/build/CMakeFiles/3.1
    .1/CMakeCCompiler.cmake
    CMake Error: Error required internal CMake variable not set, cmake may be not be
    built correctly.
    Missing variable is:
    CMAKE_CXX_COMPILER_ENV_VAR
    CMake Error: Error required internal CMake variable not set, cmake may be not be
    built correctly.
    Missing variable is:
    CMAKE_CXX_COMPILER
    CMake Error: Could not find cmake module file: C:/qca_2-1-0/build/CMakeFiles/3.1
    .1/CMakeCXXCompiler.cmake
    CMake Error at CMakeLists.txt:9 (project):
    No CMAKE_C_COMPILER could be found.

    Tell CMake where to find the compiler by setting the CMake cache entry
    CMAKE_C_COMPILER to the full path to the compiler, or to the compiler name
    if it is in the PATH.

    CMake Error at CMakeLists.txt:9 (project):
    No CMAKE_CXX_COMPILER could be found.

    Tell CMake where to find the compiler by setting the CMake cache entry
    CMAKE_CXX_COMPILER to the full path to the compiler, or to the compiler
    name if it is in the PATH.

    CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
    CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
    -- Configuring incomplete, errors occurred!

    Edit: Maybe it helps to know that MinGW is in c:\MinGW\ with mingw-get.exe in the bin folder.


  • Lifetime Qt Champion

    Are you using a self installed MinGW or the one provided with Qt ?



  • I'm not sure but I think I installed MinGW before or after Qt by myself for some reasons. In the Tools folder of Qt are the MinGW versions I mentioned before. So I installed it at least 2 times I guess.

    Edit: I think c:\MinGW\ is the rest of an old installation. Because the folder has way less files than c:\Qt\Tools\mingw491_32\ or c:\Qt\Tools\mingw482_32\


  • Lifetime Qt Champion

    Then just remove it completely (however I don't remember if there's an entry for it in Windows Control Panel)

    IIRC, you should also have shortcut in Start Menu -> Qt that starts a command line with MinGW setup, use that one and you should be good to go.



  • I can't find any hints how to uninstall it (if even possible) so I just renamed c:\MinGW to c:\MinGW_OLD just in case I need it for something I forgot.

    In Start Menu -> Qt are only these entries

    • Qt Creator (Community)
    • Qt Maintenance Tool
    • qt-project.org
    • README
    • Unistall Qt

  • Lifetime Qt Champion

    Ok then, take a look in your Qt folder and search for a file called qtenv2.bat

    Once you have found it you can create a shortcut containing:

    @C:\Windows\System32\cmd.exe /A /Q /K C:\Qt\Qt5.4.1\5.4.1\mingw49_32\bin\qtenv2.bat@

    Adapt the path to yours

    Then start the command line using that shortcut and you should have mingw at your disposition



  • Ok, I did so. Thank you! When I run C:\qca_2-1-0\build>c:\cmake\bin\cmake .. -G "MinGW Makefiles" now, I'm getting the same error again.

    C:\qca_2-1-0\build>c:\cmake\bin\cmake .. -G "MinGW Makefiles"
    CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
    CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
    CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
    Missing variable is:
    CMAKE_C_COMPILER_ENV_VAR
    CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
    Missing variable is:
    CMAKE_C_COMPILER
    CMake Error: Could not find cmake module file: C:/qca_2-1-0/build/CMakeFiles/3.1.2/CMakeCCompiler.cmake
    CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
    Missing variable is:
    CMAKE_CXX_COMPILER_ENV_VAR
    CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
    Missing variable is:
    CMAKE_CXX_COMPILER
    CMake Error: Could not find cmake module file: C:/qca_2-1-0/build/CMakeFiles/3.1.2/CMakeCXXCompiler.cmake
    CMake Error at CMakeLists.txt:9 (project): No CMAKE_C_COMPILER could be found.

    Tell CMake where to find the compiler by setting the CMake cache entry CMAKE_C_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.

    CMake Error at CMakeLists.txt:9 (project): No CMAKE_CXX_COMPILER could be found.

    Tell CMake where to find the compiler by setting the CMake cache entry CMAKE_CXX_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.

    CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
    CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
    -- Configuring incomplete, errors occurred!

    C:\qca_2-1-0\build>


  • Lifetime Qt Champion

    Did you start from a clean folder ?



  • I tried again from a clean folder and running the shortcut as admin before.
    Somehow it worked. :)
    Now I have some folders and files in c:\qca_2-1-0\build
    Thank you very much!
    How to move on from here?


  • Lifetime Qt Champion

    Admin ? Strangeā€¦

    "Here":https://github.com/JPNaude/dev_notes/wiki/Using-the-Qt-Cryptographic-Architecture-with-Qt5 you have a nice explanation on how to check that everything is fine



  • So now I have to run make from inside the build folder?


  • Lifetime Qt Champion

    run make ?
    Can you be more specific ?



  • Sorry that I didn't reply. I couldn't use the computer for a while.

    Well I don't know where to start at the given link.


  • Lifetime Qt Champion

    You can run the qcatool.exe to check that everything is in place


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