Question

我下载了zbar库，并在我的主目录中克隆了opencv-zbar个repo。然后我运行了以下命令$cmake .，它给出了我的错误

-- Could NOT find ZBAR (missing:  ZBAR_LIBRARIES ZBAR_INCLUDE_DIR) 
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
ZBAR_LIBRARIES
    linked by target "zbar_opencv" in directory /home/surabhi/opencv-zbar

-- Configuring incomplete, errors occurred!
See also "/home/surabhi/opencv-zbar/CMakeFiles/CMakeOutput.log".

然后我在我的CMakeCache.txt中做了两处更改，如下所示

//Path to a file.
ZBAR_INCLUDE_DIR:PATH=/usr/include/zbar

//Path to a library.
ZBAR_LIBRARIES:FILEPATH=/usr/lib/libzbar.so

因为设置为NOTFOUND。

然后它没有给我任何错误

-- Found ZBAR: /usr/lib/libzbar.so  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/surabhi/opencv-zbar

但是当我运行make

时

它给出错误：

fatal error: zbar.h: No such file or directory
 #include <zbar.h>
                  ^
compilation terminated.

我不明白为什么我会在运行cmake时发现找到ZBAR 时出现此错误。

提前致谢

Answer 1

您需要在 CMakeLists.txt 中的某处实际使用include dirs，以便CMake知道您确实想要使用这些包含路径。

示例：

include_directories(${ZBAR_INCLUDE_DIR})

或者更现代，推荐的方式：

target_include_directories(zbar_opencv PRIVATE ${ZBAR_INCLUDE_DIR})

致命错误：zbar.h：没有这样的文件或目录

1 个答案: