Building from source in release mode - no qmake.exe or mkspecs installed

  • Hello all,

    I've just downloaded, built, and installed Qt 5.9.2 in Windows. The steps were "configure <args>", "jom -j4", and "jom install". I've tried both debug and release builds ("-debug" and "-release" args to configure). My application uses CMake to build it. With the debug build of my application, everything works correctly. But with the release build, CMake can't find qmake.exe. When I look in the installed Qt directory in the bin sub-directory, there is no qmake.exe. In the debug installation, that file is there. I manually copied it from the Qt build directory to the installed directory and then CMake failed on mkspecs/win32-msvc. I copied that too and now things appear to be working. I did not have the problem with Qt 5.9.1.

    Can somebody please confirm that this is the case, or did I do something wrong?

    Thanks for any help,

  • Lifetime Qt Champion


    If you would like somebody to confirm, you should at least give the exact parameters you used to build your version of Qt and if you used out of source builds.

  • Thanks for replying. For the debug build, my configure command is:

    configure -prefix c:\Qt\5.9.2_msvc2017_debug -opensource -confirm-license -debug -platform win32-msvc -I c:\pgsql\include -L c:\pgsql\lib -nomake examples -nomake tests -sql-psql -make-tool jom

    for release, it's:

    configure -prefix c:\Qt\5.9.2_msvc2017_release -opensource -confirm-license -release -platform win32-msvc -I c:\pgsql\include -L c:\pgsql\lib -nomake examples -nomake tests -sql-psql -make-tool jom


  • Lifetime Qt Champion

    Did you do these two builds out of source builds ? If not, did you clean the sources before calling configure again ?

  • Thanks for replying again.

    I did the two builds in separate source directories, so no need to clean between them. I'm not sure what you mean by "out of source builds" (but I presume that doing them in separate directories makes this irrelevant).

    By the way, the problem does not happen on Linux builds.


  • Qt Champions 2018

    @grahamm Out of source build (lets say you have Qt source in c:\QtSource):

    mkdir c:\qt_build
    cd c:\qt_build
    ..\QtSource\configure.exe ...

  • Ok, gotcha.

    Thanks, jsulm.

  • Nobody has replied, so I've entered it as a bug: I'll see what happens.

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