问题描述
我的 Mac 上有多个版本的 openCV (2.0,2.1).有没有办法擦除这些多个版本及其所有文件，以便我可以全新安装 openCV 2.3.0
I have multiple versions of openCV (2.0,2.1) on my mac. Is there a way to erase these multiple versions and all its files so that i can make a fresh install of openCV 2.3.0
推荐答案
最明显的命令
sudo port uninstall opencv
可能不起作用，至少在我的情况下它抱怨它需要一个特定的版本.然后我跑
may not work, at least in my case it complained that it needs a particular version. I run then
sudo port uninstall opencv 4.2
在该命令之后，/opt/local/lib 中的所有 opencv 库都消失了.之后我用
All opencv libraries in /opt/local/lib were gone after that command. After that I re-installed openCV with
sudo port install opencv
(如果 ffmpeg 有问题，只需使用 sudo port uninstall ffmpeg 卸载它)
(If there is a problem with ffmpeg just uninstlal it with sudo port uninstall ffmpeg)
顺便说一下，重新安装 opencv 解决了我在从 Mountain Lion 切换到 Maverick (10.9.2) 后遇到的编译和链接问题.特别是，我在 Eclipse 中遇到了链接器问题:
Reinstalling opencv, by the way, fixed my problems with compilation and linking that I had after switching from Mountain Lion to Maverick (10.9.2). In particular, I had a linker problem in Eclipse:
Invoking: GCC C++ Linker
g++ -L/opt/local/lib -o "deltetit" ./src/deltetit.o -lopencv_core -lopencv_highgui -lopencv_imgproc
Undefined symbols for architecture x86_64:
"cv::imshow(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, cv::_InputArray const&)", referenced from:
_main in deltetit.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [deltetit] Error 1
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