Undefined symbol when compiling OpenCV's VideoCapture

I was trying to use OpenCV's video capture on C++ side of wsam, but compiler can't find a symbol. Minimal `video.cc` example as below

```
#include

int main() {
cv::VideoCapture("./video.mp4");
}
```

I can compile with g++ (version 12.0.5):
```
g++ -O3 `pkg-config --cflags --libs opencv4` -std=c++17 video.cc
```

But when using emcc (version 2.0.25)
```
emcc -O3 `pkg-config --cflags --libs opencv4` -std=c++17 video.cc
```

I got an error
```
error: undefined symbol: _ZN2cv12VideoCaptureC1ERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi (referenced by top-level compiled C/C++ code)
warning: Link with `-s LLD_REPORT_UNDEFINED` to get more information on undefined symbols
warning: To disable errors for undefined symbols use `-s ERROR_ON_UNDEFINED_SYMBOLS=0`
warning: __ZN2cv12VideoCaptureC1ERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
Error: Aborting compilation due to previous errors
```

Searched over the Internet, saw a few similar questions (same undefined symbols), but couldn't find an answer.

Can anyone share some ideas about solving this issue? Really appreciate the help!