我正在尝试安装opencv。我按照这里的步骤http://www.mobileway.net/2015/02/14/install-opencv-for-python-on-mac-os-x/
除非我尝试按
安装opencv，否则一切顺利$ brew install opencv
错误消息显示：
==> Installing opencv from homebrew/science
==> Installing dependencies for homebrew/science/opencv: mpfr, libmpc, isl, gcc, sphinx-doc, cmake, eigen, jpeg, libpng, libtiff, ilmbase, openexr, homebrew/python/numpy
==> Installing homebrew/science/opencv dependency: mpfr
==> Using the sandbox
Error: mpfr cannot be built with any available compilers.
Install GNU's GCC
brew install gcc
更新
当我尝试更多并通过brew install gcc安装gcc时，我有这个错误：
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
No changes to formulae.
Error: Could not link:
/usr/local/etc/bash_completion.d/brew
Please delete these paths and run `brew update`.
Error: Could not link:
/usr/local/share/doc/homebrew
Please delete these paths and run `brew update`.
Error: Could not link:
/usr/local/share/zsh/site-functions/_brew
Please delete these paths and run `brew update`.
Error: Could not link:
/usr/local/share/man/man1/brew.1
Please delete these paths and run `brew update`.
==> Installing dependencies for gcc: mpfr, libmpc, isl
==> Installing gcc dependency: mpfr
==> Using the sandbox
Error: mpfr cannot be built with any available compilers.
Install GNU's GCC
brew install gcc
当我删除所有上述路径并运行brew update和brew install gcc时，我仍然遇到同样的错误：
==> Installing dependencies for gcc: mpfr, libmpc, isl
==> Installing gcc dependency: mpfr
==> Using the sandbox
Error: mpfr cannot be built with any available compilers.
Install GNU's GCC
brew install gcc
有人可以帮我识别问题以及如何解决问题吗？谢谢！