c++ - 带有 MinGW 和 gcc 4.7.1 的 OpenCV 2.4.2

Question

我已经从网站上下载了最新的 OpenCV 版本 (2.4.2)。我计划为 MinGW 使用最新的 g++ 编译器，即版本 4.7.1。我一直在尝试最后一天尝试编译在以下位置找到的演示:http://docs.opencv.org/trunk/doc/tutorials/introduction/linux_gcc_cmake/linux_gcc_cmake.html .

现在我在 Windows 机器上并通过可执行文件安装它，但我看不出在这种情况下会有什么不同。

我的 CMakeLists.txt 看起来像:

project( DisplayImage )
cmake_minimum_required(VERSION 2.8)

SET("OpenCV_DIR" "D:/__dev/opencv/build")

find_package( OpenCV REQUIRED )
add_executable( DisplayImage DisplayImage )
target_link_libraries( DisplayImage ${OpenCV_LIBS} )

现在，当我编译示例时，我不断收到以下错误:

[100%] Building CXX object CMakeFiles/DisplayImage.dir/DisplayImage.cpp.obj
In file included from D:/__dev/opencv/build/include/opencv2/flann/lsh_index.h:49:0,
                 from D:/__dev/opencv/build/include/opencv2/flann/all_indices.h:42,
                 from D:/__dev/opencv/build/include/opencv2/flann/flann_base.hpp:44,
                 from D:/__dev/opencv/build/include/opencv2/flann/flann.hpp:50,
                 from D:/__dev/opencv/build/include/opencv\cv.h:69,
                 from C:\cv_test\DisplayImage.cpp:1:
D:/__dev/opencv/build/include/opencv2/flann/lsh_table.h: In member function 'void cvflann::lsh::LshTable<ElementType>::add(cvflann
::Matrix<T>)':
D:/__dev/opencv/build/include/opencv2/flann/lsh_table.h:196:14: error: 'use_speed_' was not declared in this scope
make[2]: *** [CMakeFiles/DisplayImage.dir/DisplayImage.cpp.obj] Error 1
make[1]: *** [CMakeFiles/DisplayImage.dir/all] Error 2
make: *** [all] Error 2

我知道错误的含义，但无法弄清楚我的问题。

Answer 1

您是否尝试用谷歌搜索您的问题？好像没有，很可惜:

1. undeclared variable in flann/lsh_table.h with -std=gnu++0x (Bug #2179)
2. compile error in opencv2/flann/lsh_table.h when compiling bgslibrary