title: Error installing Ruby with RVM (OSX 10.8)
body: <p>When trying to install Ruby 1.9.3 using RVM (rvm install ruby 1.9.3) I get the following error:</p>
  
  <pre><code>Searching for binary rubies, this might take some time.
  
  No binary rubies available for: osx/10.8/x86_64/ruby-1.9.3-p362.
  Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies.
  
  Fetching yaml-0.1.4.tar.gz to /Users/christiaan/.rvm/archives
  Extracting yaml to /Users/christiaan/.rvm/src/yaml-0.1.4
  Configuring yaml in /Users/christiaan/.rvm/src/yaml-0.1.4.
  
  Error running 'env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --prefix=/Users/christiaan/.rvm/usr', please read /Users/christiaan/.rvm/log/ruby-1.9.3-p362/yaml/configure.log
  
  Compiling yaml in /Users/christiaan/.rvm/src/yaml-0.1.4.
  
  Error running 'make', please read /Users/christiaan/.rvm/log/ruby-1.9.3-p362/yaml/make.log
  Installing Ruby from source to: /Users/christiaan/.rvm/rubies/ruby-1.9.3-p362, this may take a while depending on your cpu(s)...
  ruby-1.9.3-p362 - #downloading ruby-1.9.3-p362, this may take a while depending on your connection...
  ruby-1.9.3-p362 - #extracted to /Users/christiaan/.rvm/src/ruby-1.9.3-p362 (already extracted)
  ruby-1.9.3-p362 - #configuring
  Error running 'env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --enable-shared --disable-install-doc --prefix=/Users/christiaan/.rvm/rubies/ruby-1.9.3-p362 --with-opt-dir=/Users/christiaan/.rvm/usr', please read /Users/christiaan/.rvm/log/ruby-1.9.3-p362/configure.log
  
  There has been an error while running configure. Halting the installation.
  </code></pre>
  
  <p>I've tried all the tips from similar questions, but can't seem to fix this.</p>
  
  <p>YAML Log (first error log produced):</p>
  
  <pre><code>[2012-12-28 16:18:06] env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --prefix=/Users/christiaan/.rvm/usr
  current path: /Users/christiaan/.rvm/src/yaml-0.1.4
  command(4): env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --prefix=/Users/christiaan/.rvm/usr
  checking for a BSD-compatible install... /usr/bin/install -c
  checking whether build environment is sane... yes
  checking for a thread-safe mkdir -p... config/install-sh -c -d
  checking for gawk... no
  checking for mawk... no
  checking for nawk... no
  checking for awk... awk
  checking whether make sets $(MAKE)... yes
  checking for gcc... /usr/local/bin/gcc-4.2
  checking whether the C compiler works... no
  configure: error: in `/Users/christiaan/.rvm/src/yaml-0.1.4':
  configure: error: C compiler cannot create executables
  See `config.log' for more details
  </code></pre>
  
  <p>RVM Log (second error log produced):</p>
  
  <pre><code>[2012-12-28 16:18:08] env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --enable-shared --disable-install-doc --prefix=/Users/christiaan/.rvm/rubies/ruby-1.9.3-p362 --with-opt-dir=/Users/christiaan/.rvm/usr
  current path: /Users/christiaan/.rvm/src/ruby-1.9.3-p362
  command(7): env LDFLAGS=-L/opt/sm/pkg/active/lib CFLAGS=-I/opt/sm/pkg/active/include CPATH=/opt/sm/pkg/active/include ./configure --enable-shared --disable-install-doc --prefix=/Users/christiaan/.rvm/rubies/ruby-1.9.3-p362 --with-opt-dir=/Users/christiaan/.rvm/usr
  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 for C compiler default output file name... 
  configure: error: C compiler cannot create executables
  See `config.log' for more details.
  </code></pre>