CMake find_package找不到Find< package> .cmake [英] CMake find_package not finding Find<package>.cmake

问题描述

我制作并安装了aruco库，它将Findaruco.cmake文件放在/ usr / local / lib / cmake目录中。在我的CMakeLists.txt文件中，我有

  ... 
 find_package（aruco REQUIRED）
  

并且总是返回标准错误

 通过在CMAKE_MODULE_PATH中不提供Findaruco.cmake，这个项目有
要求CMake找到由aruco提供的包配置文件，但
 CMake没有找到一个。 
 
无法找到由aruco提供的包配置文件与
中的任何一个以下名称：
 
 arucoConfig.cmake 
 aruco-config。 cmake 
 
将安装前缀aruco添加到CMAKE_PREFIX_PATH或将
aruco_DIR添加到包含上述文件之一的目录。如果aruco
提供了单独的开发包或SDK，请确保已经安装了
。 
  

我已将环境变量$ CMAKE_PREFIX_PATH设置为以下各项， >



  / usr / local 
 / usr / local / lib 
 / usr / local / lib / cmake 
 
 
 
 
唯一可行的是在CMakeLists中设置以下内容
  set（CMAKE_MODULE_PATH / usr / local / lib / cmake）
  
我不确定我做错了什么
解决方案
尝试设置 CMake   CMAKE_PREFIX_PATH ，而不是环境一。在 cmake 调用期间使用-D标志：
  cmake -D CMAKE_PREFIX_PATH = / usr / local / lib< path to source或build dir> 
  
但是AFAIR，CMake应该查看 / usr / local  prefix作为其默认行为。
 
I made and installed the aruco library, which put a Findaruco.cmake file in the /usr/local/lib/cmake directory. In my CMakeLists.txt file I have 
...
find_package(aruco REQUIRED)
and it always returns the standard error
By not providing "Findaruco.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "aruco", but
CMake did not find one.

Could not find a package configuration file provided by "aruco" with any of
the following names:

    arucoConfig.cmake
    aruco-config.cmake

Add the installation prefix of "aruco" to CMAKE_PREFIX_PATH or set
"aruco_DIR" to a directory containing one of the above files.  If "aruco"
provides a separate development package or SDK, be sure it has been
installed.
I've set the environment variable $CMAKE_PREFIX_PATH to each of the following, and none work
/usr/local  
/usr/local/lib  
/usr/local/lib/cmake  
The only thing that works is setting the following in CMakeLists
set(CMAKE_MODULE_PATH /usr/local/lib/cmake)
I'm not sure what I'm doing wrong
解决方案
Try setting CMake variable called CMAKE_PREFIX_PATH, not environment one. Use -D flag during cmake invocation:
cmake -D CMAKE_PREFIX_PATH=/usr/local/lib <path to source or build dir>
But AFAIR, CMake should look into /usr/local prefix as its default behavior.

                        
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