OpenSSL support for Ruby... not found

错误代码:

Checking for required software...
* GNU C++ compiler... found at /usr/bin/g++
* Curl development headers with SSL support... found
* OpenSSL development headers... found
* Zlib development headers... found
* Ruby development headers... found
* OpenSSL support for Ruby... not found
* RubyGems... found
* Rake... found at /home/sammy/.rvm/wrappers/ruby-1.9.2-p180/rake
* rack... found
* Apache 2... found at /usr/sbin/apache2
* Apache 2 development headers... found at /usr/bin/apxs2
* Apache Portable Runtime (APR) development headers... found at /usr/bin/apr-1-config
* Apache Portable Runtime Utility (APU) development headers... found at /usr/bin/apu-1-config
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.

找不到 OpenSSL support for Ruby. 解決方式:

cd $HOME
cd .rvm/src/ruby-1.9.2-p0/ext/openssl
ruby extconf.rb
make
make install