在Windows上使用mingw32-make时opencv安装错误

Question

在Windows 10平台上使用mingw32-make命令进行opencv安装,然后可能最终得到以下错误.

Windows版本:10 OpenCv:3.2.0

请建议我安装.

D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp: In constructor 'testing::internal::Mutex::Mutex()':
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8829:45: error: cannot convert 'CRITICAL_SECTION* {aka _CRITICAL_SECTION*}' to '_RTL_CRITICAL_SECTION*' in initialization
       critical_section_(new CRITICAL_SECTION) {
                                             ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8830:48: error: cannot convert '_RTL_CRITICAL_SECTION*' to 'LPCRITICAL_SECTION {aka _CRITICAL_SECTION*}' for argument '1' to 'void InitializeCriticalSection(LPCRITICAL_SECTION)'
   ::InitializeCriticalSection(critical_section_);
                                                ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp: In destructor 'testing::internal::Mutex::~Mutex()':
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8840:46: error: cannot convert '_RTL_CRITICAL_SECTION*' to 'PCRITICAL_SECTION {aka _CRITICAL_SECTION*}' for argument '1' to 'void DeleteCriticalSection(PCRITICAL_SECTION)'
     ::DeleteCriticalSection(critical_section_);
                                              ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp: In member function 'void testing::internal::Mutex::Lock()':
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8848:43: error: cannot convert '_RTL_CRITICAL_SECTION*' to 'LPCRITICAL_SECTION {aka _CRITICAL_SECTION*}' for argument '1' to 'void EnterCriticalSection(LPCRITICAL_SECTION)'
   ::EnterCriticalSection(critical_section_);
                                           ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp: In member function 'void testing::internal::Mutex::Unlock()':
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8858:43: error: cannot convert '_RTL_CRITICAL_SECTION*' to 'LPCRITICAL_SECTION {aka _CRITICAL_SECTION*}' for argument '1' to 'void LeaveCriticalSection(LPCRITICAL_SECTION)'
   ::LeaveCriticalSection(critical_section_);
                                           ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp: In member function 'void testing::internal::Mutex::ThreadSafeLazyInit()':
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8879:27: error: cannot convert 'CRITICAL_SECTION* {aka _CRITICAL_SECTION*}' to '_RTL_CRITICAL_SECTION*' in assignment
         critical_section_ = new CRITICAL_SECTION;
                           ^
D:\installers\opencv\sources\modules\ts\src\ts_gtest.cpp:8880:54: error: cannot convert '_RTL_CRITICAL_SECTION*' to 'LPCRITICAL_SECTION {aka _CRITICAL_SECTION*}' for argument '1' to 'void InitializeCriticalSection(LPCRITICAL_SECTION)'
         ::InitializeCriticalSection(critical_section_);
                                                      ^
modules\ts\CMakeFiles\opencv_ts.dir\build.make:237: recipe for target 'modules/ts/CMakeFiles/opencv_ts.dir/src/ts_gtest.cpp.obj' failed
mingw32-make[2]: *** [modules/ts/CMakeFiles/opencv_ts.dir/src/ts_gtest.cpp.obj] Error 1
CMakeFiles\Makefile2:5379: recipe for target 'modules/ts/CMakeFiles/opencv_ts.dir/all' failed
mingw32-make[1]: *** [modules/ts/CMakeFiles/opencv_ts.dir/all] Error 2
Makefile:159: recipe for target 'all' failed
mingw32-make: *** [all] Error 2

Answer 1

尝试在Windows10上使用mingw32构建OpenCV 3.2.0时,我也遇到了同样的问题.为了类似的问题,我搜索了一下Github的修复程序.它说问题是:

MinGW将_CRITICAL_SECTION和_RTL_CRITICAL_SECTION定义为两个独立(等效)结构,而不是使用typedef

因此,您必须为_CRITICAL_SECTION和_RTL_CRITICAL_SECTION添加另一个typedef GTEST_CRITICAL_SECTION,并对这两种情况使用此typedef.

这是做什么的:

编辑" opencv\sources\modules\ts\include\opencv2\ts \"里面的"ts_gtest.h"

1. 替换此行(可能是第723行)
   

    // assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
    // This assumption is verified by
    // WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
    struct _RTL_CRITICAL_SECTION;

同

    #if GTEST_OS_WINDOWS_MINGW
        // MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two
        // separate (equivalent) structs, instead of using typedef
        typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION;
    #else
        // Assume CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
        // This assumption is verified by
        // WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION
        typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
    #endif

2. 替换此行(可能在编辑之前在第3060行 - 在修改第一部分时更改行号)

    _RTL_CRITICAL_SECTION* critical_section_;

同

    GTEST_CRITICAL_SECTION* critical_section_;

这两个更改应该可以解决您的上述错误.