Error installing any ruby version with RVM on OSX
I ran into the same issue, you need to manually install all the required packages using Brew. For me I had to run the following installs:
brew install autoconfbrew install automakebrew install libtoolbrew install apple-gcc42brew install libyamlbrew install libxsltbrew install libksbabrew install opensslYou just need to keep running "rvm requirements" and reading the log and installing the packages needed until there are no more errors.
After installing RVM, You'll want to run
rvm requirementsto see if anything else is required to install ruby and rails first.
here is the similar question asked rvm install ruby
This solved problem for me
sudo chown -R `whoami` /Library/Caches/Homebrew/