Win10下Qt+OpenCV+Cmake編譯錯誤

 

工具：

QT5.14.2

cmake-3.19.1-win64-x64

opencv4.3.0

mingw-w64-install

 

安裝完Opencv、Qt和Cmake之後在cmd下通過mingw32-make編譯，結果出現錯誤，錯誤提示如下：

 

錯誤（一）：

gcc: error: long: No such file or directory

C:\Strawberry\c\bin\windres.exe: preprocessing failed.

mingw32-make[2]: *** [modules\core\CMakeFiles\opencv_core.dir\build.make:1494: modules/core/CMakeFiles/opencv_core.dir/vs_version.rc.obj] Error 1

mingw32-make[1]: *** [CMakeFiles\Makefile2:1909: modules/core/CMakeFiles/opencv_core.dir/all] Error 2

mingw32-make: *** [Makefile:181: all] Error 2

 

原因：the windres.exe mingw uses cannot handle/escape “long long” given as a cmdline arg

解決方法：在cmake裡面找到OPENCV_ENABLE_ALLOCATOR_STATS或者在search裡面搜尋，然後把後面的勾選去掉，接著Configure和Generate後，接著在cmd視窗中mingw32-make即可繼續編譯。

 

 

錯誤（二）：

D:/Qt6/Tools/mingw730_64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: i386 architecture of input file `CMakeFiles\opencv_core.dir/objects.a(vs_version.rc.obj)' is incompatible with i386:x86-64 output

collect2.exe: error: ld returned 1 exit status

mingw32-make[2]: *** [modules\core\CMakeFiles\opencv_core.dir\build.make:1708: bin/libopencv_core430.dll] Error 1

mingw32-make[1]: *** [CMakeFiles\Makefile2:1909: modules/core/CMakeFiles/opencv_core.dir/all] Error 2

mingw32-make: *** [Makefile:181: all] Error 2

 

原因：相容問題

解決方法：http://mingw-w64.org/doku.php/download下載安裝mingw-w64-install，成功後接著Configure和Generate後，在cmd視窗中mingw32-make即可繼續編譯

 

錯誤（三）：

[ 33%] Linking CXX shared library ..\..\bin\libopencv_core430.dll

D:/Qt6/Tools/mingw730_64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: i386 architecture of input file `CMakeFiles\opencv_core.dir/objects.a(vs_version.rc.obj)' is incompatible with i386:x86-64 output

collect2.exe: error: ld returned 1 exit status

mingw32-make[2]: *** [modules\core\CMakeFiles\opencv_core.dir\build.make:1708: bin/libopencv_core430.dll] Error 1

mingw32-make[1]: *** [CMakeFiles\Makefile2:1909: modules/core/CMakeFiles/opencv_core.dir/all] Error 2

mingw32-make: *** [Makefile:181: all] Error 2

 

解決方法：在cmake gui中新增條目OPENCV_VS_VERSIONINFO_SKIP = 1，再重新Configure，Generate後，在cmd視窗中mingw32-make即可繼續編譯