Suddenly, I didn’t upgrade the new version of Ruby1.9.3 for a long time without upgrading Ruby’s Mac. I didn’t expect to be a fold.
1 installation RVM
$ bash -s stable
Reload the Shell environment:
$ SOURCE ~ / .BASH_PROFILE
$ RVM Requirements
2 installation C compiler
I didn’t install Xcode, so I need a single C compiler.If your system is 10.7, many people on the Internet will also say that some problems are caused by the different versions of the compiler.The suggestion here is to HTTPS: //github.com/kennetReitz/osx-gcc-installer/downloads to download the compiler suitable for your own system.[Thank vincent’s article http://www.reai.us/compile-ruby-on-mac-lion]
3 Install Ruby1.9.3
$ sudo rvm install 1.9.3
4 Change the default Ruby version
$ RVM – DEFAULT 1.9.3