opencv - CMake 如何找到不同版本的库？

Question

我已经在系统目录 (/usr/local) 安装了 Opencv 3.2... CMAKE 可以很好地自动找到opencv3.2。 但是我必须在我的项目中使用 opencv 2.4，所以我在我的 ~/otherlibs 文件夹中安装了 opencv 2.4。

生成文件:

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "~/otherlibs")
find_package(OpenCV 2.4 REQUIRED)

但是CMAKE总是有这样的错误:

CMake Error at CMakeLists.txt:15(find_package):
    Could not find a configuration file for package "OpenCV" that is compatible
    with requested version "2.4"

    The following configuration files were considered but not accepted:
    /usr/local/share/OpenCV/OpenCVConfig.cmake, verison 3.2.0

似乎 cmake 总是找到系统目录，在找到 Opencv.cmake 后它将停止寻找我指定的目录 ~/otherlibs

Answer 1

您是否尝试使用 -DCMAKE_PREFIX_PATH=/home/myaccount/otherlibs？这将更改 cmake 搜索配置文件的规则，并可能在这方面对您有所帮助。