QT 编译 opencv 源码报错怎么搞？？

楼主主要是想编译 opecv 库在 QT 里面使用，但是编译遇到问题，看过各种帖子还是有问题，敢请大佬指教。配置如下：

• 平台 win10 64 位
• QT5.8 32 位(QT Creater4.21 + MinGW5.30 32 位 + Cmake 3.81 64 位)
• Cmake 选项按参考的这篇博客

使用 QT 编译之后编译到 95%的时候链接出现问题如下：

... [ 95%] Linking CXX shared library ..\..\bin\libopencv_world330.dll CMakeFiles\opencv_world.dir/objects.a(parallel_pthreads.cpp.obj): In function `sscanf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:231: undefined reference to `__mingw_vsscanf' CMakeFiles\opencv_world.dir/objects.a(persistence.cpp.obj): In function `strtod': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' CMakeFiles\opencv_world.dir/objects.a(data.cpp.obj): In function `strtod': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' CMakeFiles\opencv_world.dir/objects.a(haar.cpp.obj): In function `sscanf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:231: undefined reference to `__mingw_vsscanf' CMakeFiles\opencv_world.dir/objects.a(THDiskFile.cpp.obj): In function `fscanf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:253: undefined reference to `__mingw_vfscanf' CMakeFiles\opencv_world.dir/objects.a(rgbe.cpp.obj): In function `sscanf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:231: undefined reference to `__mingw_vsscanf' CMakeFiles\opencv_world.dir/objects.a(cap_images.cpp.obj): In function `sscanf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:231: undefined reference to `__mingw_vsscanf' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN11GuiReceiverC2Ev': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:798: undefined reference to `vtable for GuiReceiver' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN11GuiReceiverD2Ev': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:827: undefined reference to `vtable for GuiReceiver' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN10CvTrackbar2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:238: undefined reference to `CvTrackbar::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:238: undefined reference to `CvTrackbar::staticMetaObject' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN12CvPushButtonC2EP11CvButtonbar7QStringPFviPvES3_': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1480: undefined reference to `vtable for CvPushButton' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1480: undefined reference to `vtable for CvPushButton' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN10CvCheckBoxC2EP11CvButtonbar7QStringPFviPvES3_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1502: undefined reference to `vtable for CvCheckBox' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1502: undefined reference to `vtable for CvCheckBox' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN13CvRadioButtonC2EP11CvButtonbar7QStringPFviPvES3_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1525: undefined reference to `vtable for CvRadioButton' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1525: undefined reference to `vtable for CvRadioButton' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN8CvWindowD2Ev': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1687: undefined reference to `vtable for CvWindow' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1687: undefined reference to `vtable for CvWindow' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15DefaultViewPort2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj):D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: more undefined references to `DefaultViewPort::staticMetaObject' follow CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN11CvButtonbarC2EP7QWidget7QString': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1424: undefined reference to `vtable for CvButtonbar' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1424: undefined reference to `vtable for CvButtonbar' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN11CvButtonbar2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:171: undefined reference to `CvButtonbar::staticMetaObject' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15CvWinPropertiesC2E7QStringP7QObject': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1552: undefined reference to `vtable for CvWinProperties' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1552: undefined reference to `vtable for CvWinProperties' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15DefaultViewPort2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN8CvWindow2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:288: undefined reference to `CvWindow::staticMetaObject' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15DefaultViewPortC2EP8CvWindowi': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2410: undefined reference to `vtable for DefaultViewPort' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2410: undefined reference to `vtable for DefaultViewPort' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2410: undefined reference to `vtable for DefaultViewPort' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN8CvWindowC2E7QStringi': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1622: undefined reference to `vtable for CvWindow' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1622: undefined reference to `vtable for CvWindow' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15DefaultViewPortD2Ev': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2444: undefined reference to `vtable for DefaultViewPort' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2444: undefined reference to `vtable for DefaultViewPort' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:2444: undefined reference to `vtable for DefaultViewPort' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN10CvTrackbarC2EP8CvWindow7QStringPiiPFviPvES4_': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1295: undefined reference to `vtable for CvTrackbar' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1295: undefined reference to `vtable for CvTrackbar' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN10CvTrackbarC2EP8CvWindow7QStringPiiPFviE': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1305: undefined reference to `vtable for CvTrackbar' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1305: undefined reference to `vtable for CvTrackbar' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15CvWinPropertiesD2Ev': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1610: undefined reference to `vtable for CvWinProperties' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.cpp:1610: undefined reference to `vtable for CvWinProperties' CMakeFiles\opencv_world.dir/objects.a(window_QT.cpp.obj): In function `ZN15DefaultViewPort2trEPKcS1_i': D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' D:/opencv/opencv-3.3.0/opencv-3.3.0/modules/highgui/src/window_QT.h:479: undefined reference to `DefaultViewPort::staticMetaObject' ../../3rdparty/lib/liblibprotobuf.a(strtod.cc.obj): In function `strtod': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdlib.h:399: undefined reference to `__mingw_strtod' ../../3rdparty/lib/libzlib.a(gzlib.c.obj): In function `snprintf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:557: undefined reference to `__ms_vsnprintf' ../../3rdparty/lib/libzlib.a(gzwrite.c.obj): In function `vsnprintf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:545: undefined reference to `__ms_vsnprintf' ../../3rdparty/lib/liblibpng.a(pngwrite.c.obj): In function `gmtime': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/time.h:219: undefined reference to `_gmtime32' ../../3rdparty/lib/liblibjasper.a(jas_stream.c.obj): In function `vsnprintf': D:/Qt/Qt5.8.0/Tools/mingw530_32/i686-w64-mingw32/include/stdio.h:545: undefined reference to `__ms_vsnprintf' collect2.exe: error: ld returned 1 exit status mingw32-make.exe[2]: *** [bin/libopencv_world330.dll] Error 1 mingw32-make.exe[1]: *** [modules/world/CMakeFiles/opencv_world.dir/all] Error 2 mingw32-make.exe: *** [all] Error 2 modules\world\CMakeFiles\opencv_world.dir\build.make:9481: recipe for target 'bin/libopencv_world330.dll' failed CMakeFiles\Makefile2:1349: recipe for target 'modules/world/CMakeFiles/opencv_world.dir/all' failed Makefile:161: recipe for target 'all' failed 23:16:37: 进程"C:\Program Files\CMake\bin\cmake.exe"退出，退出代码 2。 Error while building/deploying project OpenCV (kit: Desktop Qt 5.8.0 MinGW 32bit) When executing step "Make" 

后面问题都先不管了，但是最前面的 undefined reference to '__mingw_vfscanf'以及 undefined reference to '__ms_vsnprintf'这类问题不知道什么原因。查了资料之后发现有类似的一个帖子说是编译工具链的问题,但是除了 cmake 其他的都是 QT 内置的啊。大佬请赐教。