$rvm install ree --with-readline-dir=/home/ubuntu/.rvm/usr --with-iconv-dir=/home/ubuntu/.rvm/usr --with-zlib-dir=/home/ubuntu/.rvm/usr --with-openssl-dir=/home/ubuntu/.rvm/usr

但是,它失败并出现以下错误：

Installing Ruby Enterprise Edition from source to: /home/ubuntu/.rvm/rubies/ree-1.8.7-2011.03
ree-1.8.7-2011.03 - #fetching (ruby-enterprise-1.8.7-2011.03)
ree-1.8.7-2011.03 - #extracting ruby-enterprise-1.8.7-2011.03 to /home/ubuntu/.rvm/src/ree-1.8.7-2011.03
ree-1.8.7-2011.03 - #installing 
ERROR: Error running './installer -a /home/ubuntu/.rvm/rubies/ree-1.8.7-2011.03  --dont-install-useful-gems ',please read /home/ubuntu/.rvm/log/ree-1.8.7-2011.03/install.log
ERROR: There has been an error while trying to run the ree installer. Halting the installation.

文件/home/ubuntu/.rvm/log/ree-1.8.7-2011.03/install.log说明如下：

* C compiler... found at /usr/bin/gcc
 * C++ compiler... found at /usr/bin/g++
 * The 'make' tool... found at /usr/bin/make
 * The 'patch' tool... found at /usr/bin/patch
 * Zlib development headers... 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 OpenSSL development headers:
   Please download it from http://www.openssl.org/

 * To install GNU Readline development headers:
   Please download it from http://cnswww.cns.cwru.edu/PHP/chet/readline/rltop.html

但是我确实将openssl,readline和zlib-devel安装为rvm软件包并通过apt-get安装在系统上.

$rvm package install ree_dependencies

请帮忙！