getting error when run mingw32-make: cap_dshow.cpp file error

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HI, After setting necessary things, When I run mingw32-make in command line, up to 41% Many things were gone fine with few warnings. But at 42%, it stopped due to error in module/videoio/cmakefiles/opencv_videoio.dir/src/cap_dshow.cpp.obj failed

After searching this website, someone recommended to check for broken Cap_dshow.cpp (missing "/" on comment, etc). when I go through the Cap_dshow.cpp file, i think something missing in the file but I could not able to recognize the error. Can anyone give me working cap_dshow.cpp file to replace the error file? Or could be there any other issue?

my OS: MS Windows 7 32 bit Opencv: opencv-4.0.0-vc14_vc15.exe

advance thanks

Added:

Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "2.7")
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "3.2")
libjpeg-turbo: VERSION = 1.5.3, BUILD = opencv-4.0.0-libjpeg-turbo
Looking for Mfapi.h
Looking for Mfapi.h - found
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find BLAS (missing: BLAS_LIBRARIES) 
LAPACK requires BLAS
A library with LAPACK API not found. Please specify library location.
Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
OpenCV Python: during development append to PYTHONPATH: D:/opencv/build/my_build/python_loader      

Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx2.cpp         
Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.avx2.cpp     
Excluding from source files list: modules/imgproc/src/filter.avx2.cpp      
Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp      
Excluding from source files list: modules/imgproc/src/resize.avx2.cpp     
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp       
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp     
Excluding from source files list: modules/features2d/src/fast.avx2.cpp      
Excluding from source files list: modules/calib3d/src/undistort.avx2.cpp      

    General configuration for OpenCV 4.0.0 =====================================
  Version control:               unknown

  Platform:
    Timestamp:                   2018-12-12T18:01:01Z
    Host:                        Windows 6.1.7600 x86
    CMake:                       3.13.1
    CMake generator:             MinGW Makefiles
    CMake build tool:            C:/PROGRA~1/MINGW-~1/I686-8~1.0-P/mingw32/bin/mingw32-make.exe
    Configuration:               Release

  CPU/HW features:
    Baseline:                    SSE SSE2
      requested:                 SSE2
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX
      requested:                 SSE4_1 SSE4_2 AVX FP16
      SSE4_1 (8 files):          + SSE3 SSSE3 SSE4_1
      SSE4_2 (2 files):          + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (1 files):            + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (5 files):             + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX

  C/C++:
    Built as dynamic libs?:      YES
    C++ Compiler:                C:/Program Files/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/bin/g++.exe  (ver 8.1.0)   
    C++ flags (Release):         -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -fomit-frame-pointer -ffunction-sections -fdata-sections ...