How can I re-install the system Ruby on Mac OS X Lion?

Question

I installed Homebrew and it recommended that I delete the following "evil" libraries:

libcvP11.dylib
libcvP11LCB.dylib
libfuse.2.dylib
libfuse_ino64.2.dylib
libgcc_s.1.dylib
libgcc_s.10.4.dylib
libgcc_s.10.5.dylib
libgfortran.2.0.0.dylib
libhistory.6.1.dylib
libreadline.6.1.dylib
libruby.1.9.1.dylib
libsqlite3.0.8.6.dylib
libtcl8.4.dylib
libtk8.4.dylib

So, I went ahead and rm'ed all the files.

Now, when I type Ruby -v, I get:

dyld: Library not loaded: /usr/local//lib/libruby.dylib
Referenced from: /usr/local/bin/ruby
Reason: Incompatible library version: ruby requires version 1.9.1 or later, but
libruby.dylib provides version 1.8.0
Trace/BPT trap: 5

I believe the system Ruby is now complaining that it cannot find libruby.1.9.1.dylib!

In the mean time, I have successfully installed Ruby 1.9.3 using RVM, but I'd still like my system Ruby not to be corrupt. I'm considering re-installing the complete system Ruby, but I'm open to all suggestions. I'm also worried that other apps may be broken because of the files I have deleted. I would appreciate any help as to what I should do next.

I don't know what dynamic libraries are and what they are used for, but I'm under the impression that the files I deleted weren't so evil after all!

Answer 1

RVM is definitely the way to go. You should install all your ruby versions through it and if possible create a different gemset for each project. It will really help you in not getting any kind of conflicts.