Installing OpenCV2.4.1 on windows 7 x64 - Mingw & codeblocks

问题

Hi, I followed this tutorial

Getting started with OpenCV 2.4 and MinGW on Windows 7

I configured the same except instead of x86, i put x64.

This is the example

#include "opencv2/highgui/highgui.hpp"
#include <iostream>

using namespace cv;
using namespace std;

int main(int argc, char** argv)
{
Mat im = imread(argc == 2 ? argv[1] : "lena.jpg", 1);
if (im.empty())
{
cout << "Cannot open image!" << endl;
return -1;
}

imshow("image", im);
waitKey(0);

return 0;
}

when i compile main.cpp

C:\Users\rgap\Desktop>g++ -I"C:\opencv\build\include" -L"C:\opencv\build\x64\mingw\lib" main.cpp -lope ncv_core241 -lopencv_highgui241 -o main

I get the following error

C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0x62): undefined reference to `cv::imread(
std::string const&, int)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0xc7): undefined reference to `cv::_InputA
rray::_InputArray(cv::Mat const&)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0xfe): undefined reference to `cv::imshow(
std::string const&, cv::_InputArray const&)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text+0x120): undefined reference to `cv::waitKe
y(int)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text$_ZN2cv3MatD1Ev[cv::Mat::~Mat()]+0x2b): und
efined reference to `cv::fastFree(void*)'
C:\Users\rgap\AppData\Local\Temp\ccDgmPAT.o:main.cpp:(.text$_ZN2cv3Mat7releaseEv[cv::Mat::release()]+0
x3c): undefined reference to `cv::Mat::deallocate()'
collect2: ld devolvió el estado de salida 1

Is this a bug? :(

thanks :)

来源：https://stackoverflow.com/questions/11107022/installing-opencv2-4-1-on-windows-7-x64-mingw-codeblocks

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