学习OpenCV3：MinGW编译OpenCV到vs_version.rc.obj处出错

爱被打了一巴掌 2023-05-22 10:26 70阅读 0赞

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# 1. 错误描述 #

![gcc: error: long: No such file or directory][gcc_ error_ long_ No such file or directory]

[ 65% ] Building RC object modules/world/CMakeFiles/opencv_world.dir/vs_version.rc.obj
    gcc: error: long: No such file or directory
    C:\Mingw-w64\mingw32\bin\windres.exe: preprocessing failed.
    mingw32-make[2]: *** [modules\world\CMakeFiles\opencv_world.dir\build.make:11240: modules/world/CMakeFiles/opencv_world.dir/vs_version.rc.obj] Error 1
    mingw32-make[1]: *** [CMakeFiles\Makefile2:4789: modules/world/CMakeFiles/opencv_world.dir/all] Error 2
    mingw32-make: *** [Makefile:179: all] Error 2

# 2. 分析 #

打开**modules\\world\\CMakeFiles\\opencv\_world.dir\\build.make**的第11240行发现如下内容，可发现错误原因是未成功生成vs\_version.rc.obj。

modules/world/CMakeFiles/opencv_world.dir/vs_version.rc.obj: modules/world/CMakeFiles/opencv_world.dir/flags.make
    modules/world/CMakeFiles/opencv_world.dir/vs_version.rc.obj: modules/world/vs_version.rc
    	@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --green --progress-dir=D:\opencv\bulid_mingw\CMakeFiles --progress-num=$(CMAKE_PROGRESS_801) "Building RC object modules/world/CMakeFiles/opencv_world.dir/vs_version.rc.obj"
    	cd /d D:\opencv\bulid_mingw\modules\world && C:\Mingw-w64\mingw32\bin\windres.exe -O coff $(RC_DEFINES) $(RC_INCLUDES) $(RC_FLAGS) D:\opencv\bulid_mingw\modules\world\vs_version.rc CMakeFiles\opencv_world.dir\vs_version.rc.obj

# 3. 解决方法 #

根据**build.make**中的错误行，自己修改编译命令，手动生成vs\_version.rc.obj，并重新mingw32-make。

cd /d D:\opencv\bulid_mingw\modules\world
    C:\Mingw-w64\mingw32\bin\windres.exe D:\opencv\bulid_mingw\modules\world\vs_version.rc -O coff CMakeFiles\opencv_world.dir\vs_version.rc.obj

![编译命令][format_png_pic_center]

![生成vs\_version.rc.obj][vs_version.rc.obj]

![重新mingw32-make][mingw32-make]

[gcc_ error_ long_ No such file or directory]: /images/20230521/1e751b1bccf747da99fddad75b77b73c.png
[format_png_pic_center]: /images/20230521/dbc24f4b35ba4a5990aebd41705e0f06.png
[vs_version.rc.obj]: /images/20230521/c1bf65c5c6214a3f9ac1923e9c6c9bce.png
[mingw32-make]: /images/20230521/c5188f8ebfa844fea43121e3ea810f54.png