Why do I get a bcrypt-ruby gem install error?

Question

Getting an error when trying to install the gem devise, the installation is stopping on the gem bcrypt-ruby:

$ gem install bcrypt-ruby
Error installing bcry         


        

Answer 1

Looks like there might be some info missing here - for me, this was due to a brew install of gcc. gcc was in /usr/bin, but not gcc-4.2. So I just did the following:

$ cd /usr/bin
$ sudo ln -s gcc gcc-4.2

which creates a link, gcc-4.2, which the gem is looking for that goes back to gcc.

Hope that helps.