我以前看过很多关于这个问题的帖子，并遵循了它们的指示，但没有任何作用。我将在下面概述我所做的事情以及我所遵循的说明 - 如果有任何建议，我将不胜感激！
我按照以下安装说明进行操作： http://pragmaticstudio.com/blog/2010/9/23/install-rails-ruby-mac
我已经为OSX Mountain Lion下载了X-code并安装了gcc编译器：
$ gcc --version
i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
我按照指示安装了最新版本的git。
$ git --version
git version 1.7.10.2 (Apple Git-33)
同样，也可以通过命令行使用 rvm 进行相似的操作：
$ rvm --version
rvm 1.16.13 (stable) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
当我试图使用RVM安装Ruby时，我会得到以下错误信息:
$ rvm install 1.9.3
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.
Installing Ruby from source to: /Users/mondemoo/.rvm/rubies/ruby-1.9.3-p286, this may take a while depending on your cpu(s)...
ruby-1.9.3-p286 - #downloading ruby-1.9.3-p286, this may take a while depending on your connection...
ruby-1.9.3-p286 - #extracted to /Users/mondemoo/.rvm/src/ruby-1.9.3-p286 (already extracted)
ruby-1.9.3-p286 - #configuring
Error running 'env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include -L/Users/mondemoo/.rvm/usr/lib ./configure --enable-shared --disable-install-doc --prefix=/Users/mondemoo/.rvm/rubies/ruby-1.9.3-p286', please read /Users/mondemoo/.rvm/log/ruby-1.9.3-p286/configure.log
There has been an error while running configure. Halting the installation.
使用替代命令行时，我得到了类似的输出，但是有一些额外的部分：
$ rvm install 1.9.3 --with-gcc=clang
-bash: -dumpversion: command not found
-bash: --version: command not found
-bash: --version: command not found
Installing Ruby from source to: /Users/mondemoo/.rvm/rubies/ruby-1.9.3-p286, this may take a while depending on your cpu(s)...
ruby-1.9.3-p286 - #downloading ruby-1.9.3-p286, this may take a while depending on your connection...
ruby-1.9.3-p286 - #extracted to /Users/mondemoo/.rvm/src/ruby-1.9.3-p286 (already extracted)
ruby-1.9.3-p286 - #configuring
Error running 'env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include -L/Users/mondemoo/.rvm/usr/lib ./configure --enable-shared --disable-install-doc --prefix=/Users/mondemoo/.rvm/rubies/ruby-1.9.3-p286 --with-gcc=clang', please read /Users/mondemoo/.rvm/log/ruby-1.9.3-p286/configure.log
There has been an error while running configure. Halting the installation.
-bash: --version: command not found
查看configure.logs，我得到以下内容：
$ less /Users/mondemoo/.rvm/log/ruby-1.9.3-p286/configure.log
[2012-10-17 07:39:15] env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include -L/Users/mondemoo/.rvm/usr/lib ./configure --enable-shared --disable-install-doc --prefix=/Users/mondemoo/.rvm/rubies/ruby-1.9.3-p286 --with-gcc=clang
checking build system type... x86_64-apple-darwin12.2.0
checking host system type... x86_64-apple-darwin12.2.0
checking target system type... x86_64-apple-darwin12.2.0
checking whether the C compiler works... no
configure: error: in `/Users/mondemoo/.rvm/src/ruby-1.9.3-p286':
configure: error: C compiler cannot create executables
See `config.log' for more details
我现在非常困惑，不知道我做错了什么 - 有人能帮助吗？？看起来出现了一个与C编译器（gcc？）有关的问题，我是否理解正确？如果是这样，我该如何修复它？还有，如何进入上面提到的“config.log”文件？
谢谢！