✅ A C++ project using OpenCV that can be compiled with Clang but not with GCC

main.cpp

//
//  main.cpp
//
//  Created by treastrain / Tanaka Ryoga on 2021/01/25.
//

#include "main.hpp"

int main(int, char**) {
    std::cout << "Hello, OpenCV World!" << std::endl;

    std::cout << "OpenCV version: " << CV_VERSION << std::endl;

    cv::Mat sourceImage = cv::imread("./image.jpg");
    if (!sourceImage.data) {
        std::cerr << "Data cannot be read." << std::endl;
        exit(-1);
    }

    return 0;
}

main.hpp

//
//  main.hpp
//
//  Created by treastrain / Tanaka Ryoga on 2021/01/25.
//

#include <iostream>

#include <opencv2/opencv.hpp>

Makefile

OpenCV-Playground:
	echo OpenCV-Playground

buildclang:
	clang++ -Wall -std=c++17 -O0 \
	-I../Libraries/opencv/include/opencv4 -L../Libraries/opencv/lib \
	-lopencv_core -lopencv_videoio -lopencv_imgproc -lopencv_imgcodecs \
	-o OpenCV-Playground \
	main.cpp

buildgcc:
	g++ -Wall -std=c++17 -O0 \
	-I../Libraries/opencv/include/opencv4 -L../Libraries/opencv/lib \
	-lopencv_core -lopencv_videoio -lopencv_imgproc -lopencv_imgcodecs \
	-o OpenCV-Playground \
	main.cpp

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