gem install nmatrix-您需要支持-std = c ++ 0x或-std = c ++ 11的g ++版本

Question

我正在使用gem install nmatrix nmatrix在Mac OS X（10.11.3（15D21））上gem install nmatrix並收到以下錯誤消息：

checking for apparent GNU g++ binary with C++0x/C++11 support...
  ⏎ Exception `RuntimeError' at extconf.rb:141 - You need a version
  ⏎ of g++ which supports -std=c++0x or -std=c++11. 
  ⏎ If you're on a Mac and using Homebrew, we recommend
  ⏎ using mac-brew-gcc.sh to install a more recent g++.

nmatrix頁面提及gcc但未提及g++ -即https://github.com/SciRuby/nmatrix/wiki/Installation

有什么建議么？

Answer 1

g ++是GCC的編譯器可執行文件

您應該添加標志來編譯設置：

-std=c++0x

要么

-std=c++11