c++ - 是否需要注意非错误提示？好像找不到包 ‘***’？

Question

这些提示在OPENCV编译的时候是有的，但是编译之后没有报错。一般如果没有错误提示，我是不会去关注这些信息的，但是我也很担心。那么，我想知道是否有必要解决这些非错误提示？谢谢。

Found OpenEXR: /usr/lib/x86_64-linux-gnu/libIlmImf.so
-- Checking for module 'gtk+-3.0'
--   Found gtk+-3.0, version 3.22.30
-- Checking for module 'gthread-2.0'
--   Found gthread-2.0, version 2.56.4
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-video-1.0'
--   No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'gstreamer-base-0.10'
--   No package 'gstreamer-base-0.10' found
-- Checking for module 'gstreamer-video-0.10'
--   No package 'gstreamer-video-0.10' found
-- Checking for module 'gstreamer-app-0.10'
--   No package 'gstreamer-app-0.10' found
-- Checking for module 'gstreamer-riff-0.10'
--   No package 'gstreamer-riff-0.10' found
-- Checking for module 'gstreamer-pbutils-0.10'
--   No package 'gstreamer-pbutils-0.10' found
-- Checking for module 'libdc1394-2'
--   Found libdc1394-2, version 2.2.5
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
*****
*****
-- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_CLAPACK_INCLUDE_DIR) 
-- Looking for dgemm_
-- Looking for dgemm_ - found
-- Looking for pthread.h
-- Looking for pthread.h - found
********
********
- The imported target "vtkRenderingPythonTkWidgets" references the file
   "/usr/lib/x86_64-linux-gnu/libvtkRenderingPythonTkWidgets.so"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/cmake/vtk-6.3/VTKTargets.cmake"
but not all the files it references.
**********
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/timothy/Documents/opencv-3.4.1/build

Answer 1

如果您不熟悉 Configure 样式脚本的工作原理，您可能会对这里发生的事情感到不知所措。

这些类型的脚本寻找许多不同的依赖项，一些是可选的，一些是强制性的，并且每个依赖项可能有多个选项。

如果缺少某些可能是问题也可能不是问题的东西，您需要仔细观察输出并查看它是否达到“完成”状态，或者是否由于缺少依赖项而提前停止。

在很多情况下，如果它成功了，你就没事了，但是缺少依赖项可能会转化为缺少功能。例如，缺少 libpng 可能意味着不支持 PNG。您必须查阅文档以了解其含义。