opencv installation error while mingw32-make on windows

Question

opencv installation using mingw32-make command in windows 10 platform, then likely end up in getting the below error.

Windows version : 10 OpenCv:3.2.0

Pleas

Answer 1

I also faced the same problem while trying to build OpenCV 3.2.0 using mingw32 on Windows10. I searched a bit to find a fix on Github for similar problem. It said the problem was:

MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two separate (equivalent) structs, instead of using typedef

So, you have to add another typedef GTEST_CRITICAL_SECTION for _CRITICAL_SECTION and _RTL_CRITICAL_SECTION and use this typedef for either case.

Here is what to do :

Edit "ts_gtest.h" which is inside "opencv\sources\modules\ts\include\opencv2\ts\"

1. Replace this line (probably line 723)
   

    // 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;

with

    #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. Replace this line (probably on line 3060 before your edit - line number would have changed as you modified first part)

    _RTL_CRITICAL_SECTION* critical_section_;

with

    GTEST_CRITICAL_SECTION* critical_section_;

These two changes should fix your above error.

Answer 2

It was fixed by using TDM-gcc mingw compiler.