pctao@pctao-home-desktop:~$ rvm install ree
/home/pctao/.rvm/rubies/ree-1.8.7-2010.02
ree-1.8.7-2010.02 - #fetching (ruby-enterprise-1.8.7-2010.02)
ree-1.8.7-2010.02 - #extracting ruby-enterprise-1.8.7-2010.02 to /home/pctao/.rvm/src/ree-1.8.7-2010.02
ree-1.8.7-2010.02 - #installing
Error running './installer -a /home/pctao/.rvm/rubies/ree-1.8.7-2010.02  --dont-install-useful-gems ', please check /home/pctao/.rvm/log/ree-1.8.7-2010.02/install.error.log
There has been an error while trying to run the ree installer. Halting the installation.
pctao@pctao-home-desktop:~$ cd /home/pctao/.rvm/src/ree-1.8.7-2010.02
pctao@pctao-home-desktop:~/.rvm/src/ree-1.8.7-2010.02$ ./installer -a /home/pctao/.rvm/rubies/ree-1.8.7-2010.02  --dont-install-useful-gems
Welcome to the Ruby Enterprise Edition installer
This installer will help you install Ruby Enterprise Edition 1.8.7-2010.02.
Don't worry, none of your system files will be touched if you don't want them
to, so there is no risk that things will screw up.

You can expect this from the installation process:

  1. Ruby Enterprise Edition will be compiled and optimized for speed for this
     system.
  2. Ruby on Rails will be installed for Ruby Enterprise Edition.
  3. You will learn how to tell Phusion Passenger to use Ruby Enterprise
     Edition instead of regular Ruby.

Press Enter to continue, or Ctrl-C to abort.
Checking for required software...

 * C compiler... found at /usr/bin/gcc
 * C++ compiler... not found
 * The 'make' tool... found at /usr/bin/make
 * The 'patch' tool... found at /usr/bin/patch
 * Zlib development headers... not found
 * OpenSSL development headers... not found
 * GNU Readline development headers... not found

Some required software is not installed.
But don't worry, this installer will tell you how to install them.
Press Enter to continue, or Ctrl-C to abort.
--------------------------------------------
Installation instructions for required software

 * To install C++ compiler:
   Please run apt-get install build-essential as root.

 * To install Zlib development headers:
   Please run apt-get install zlib1g-dev as root.

 * To install OpenSSL development headers:
   Please run apt-get install libssl-dev as root.

 * To install GNU Readline development headers:
   Please run apt-get install libreadline5-dev as root.

pctao@pctao-home-desktop:~/.rvm/src/ree-1.8.7-2010.02$