将/usr/bin/gcc-4.2添加到安装ruby的路径

Question

我正在尝试通过rvm安装ruby。

rvm install ruby-1.9.3-p286

但我得到以下错误：

Searching for binary rubies, this might take some time.
No binary rubies available for: osx/10.8/x86_64/ruby-1.9.3-p286.
Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies.
You requested building with '/usr/bin/gcc-4.2' but it is not in your path.

参考错误的最后一行，我如何在我的路径中获得'usr/bin/gcc-4.2‘？

我尝试将以下PATH="/usr/bin:$PATH"添加到我的.bash_profile中，但没有成功。

Answer 1

运行以下命令：

rvm requirements

然后按照指示执行步骤。