Estoy en la pista de Ruby y estoy en el proceso de instalación de Ruby on Rails.

Estoy tratando de instalar gemas pero no está sucediendo y no estoy seguro de por qué y cómo solucionarlo.

$gem install bundler

ERROR:  Loading command: install (LoadError)
dlopen(/Users/nthulanemakgato/.rbenv/versions/2.1.1/lib/ruby/2.1.0/x86_64-    darwin13.0/openssl.bundle, 9): Library not loaded:     /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
  Referenced from: /Users/nthulanemakgato/.rbenv/versions/2.1.1/lib/ruby/2.1.0/x86_64-    darwin13.0/openssl.bundle
  Reason: image not found -     /Users/nthulanemakgato/.rbenv/versions/2.1.1/lib/ruby/2.1.0/x86_64-darwin13.0/openssl.bundle
ERROR:  While executing gem ... (NoMethodError)
undefined method `invoke_with_build_args' for nil:NilClass

Aquí está una de las soluciones que he probado:

$CONFIGURE_OPTS="--with-openssl-dir=brew --prefix openssl" rbenv install 2.1.1

rbenv: /Users/nthulanemakgato/.rbenv/versions/2.1.1 already exists
continue with installation? (y/N) y
Downloading yaml-0.1.6.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/5fe00cda18ca5daeb43762b80c38e06e
Installing yaml-0.1.6...

BUILD FAILED

Inspect or clean up the working tree at     /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716
Results logged to /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-    build.20140429120202.53716.log

Last 10 log lines:
x yaml-0.1.6/win32/vc6/test_reader.dsp
x yaml-0.1.6/win32/vc6/run_loader.dsp
x yaml-0.1.6/win32/vc6/run_parser.dsp
x yaml-0.1.6/win32/vc6/example_reformatter_alt.dsp
x yaml-0.1.6/win32/vc6/example_deconstructor.dsp
x yaml-0.1.6/win32/vc6/libyaml.dsw
x yaml-0.1.6/win32/vc6/yaml.dsp
/var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716/yaml-  0.1.6 /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716 ~
configure: WARNING: unrecognized options: --with-openssl-dir
configure: error: expected an absolute directory name for --prefix: openssl

BUILD FAILED

Inspect or clean up the working tree at     /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716
Results logged to /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-  build.20140429120202.53716.log

Last 10 log lines:
x yaml-0.1.6/win32/vc6/run_loader.dsp
x yaml-0.1.6/win32/vc6/run_parser.dsp
x yaml-0.1.6/win32/vc6/example_reformatter_alt.dsp
x yaml-0.1.6/win32/vc6/example_deconstructor.dsp
x yaml-0.1.6/win32/vc6/libyaml.dsw
x yaml-0.1.6/win32/vc6/yaml.dsp
/var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716/yaml-        0.1.6 /var/folders/tj/_bd6whds6lb7wtn2m8ylwx7h0000gp/T/ruby-build.20140429120202.53716 ~
configure: WARNING: unrecognized options: --with-openssl-dir
configure: error: expected an absolute directory name for --prefix: openssl
make: *** No targets specified and no makefile found.  Stop.

Tengo openssl-1.0.1g instalado

Estoy usando Mac 10.9.2
ruby 2.1.1p76 (revisión 2014-02-24 45161) [x86_64-darwin13.0]
rbenv 0.4.0-97-gfe0b243

Esto no es como otras preguntas en el sentido de que estoy usando rbenv, mientras que otros hacen preguntas relacionadas con rvm que no puedo usar.

Gracias por adelantado.