How can I install Ruby 1.9.3 in Mac OS X Lion?
RVM needs gcc-4.2 to be able to install ruby 1.9.3.Unfortunately Lion does not include anymore gcc-4-2, just the llvm version:
lrwxr-xr-x 1 root wheel 12 15 feb 17:21 /usr/bin/gcc -> llvm-gcc-4.2If you have Lion but upgraded from Snow Leopard it is likely that you still have gcc-4.2 If you have a brand new installation of Lion you should download gcc-4.2. I recommned downloading this package.
https://github.com/kennethreitz/osx-gcc-installerCheck that you have gcc-4.2 installed now:
-rwxr-xr-x 1 root wheel 113024 16 may 2011 /usr/bin/gcc-4.2lrwxr-xr-x 1 root wheel 12 15 feb 17:21 /usr/bin/gcc -> llvm-gcc-4.2Now you can install ruby 1.9.3 as usual:
rvm install 1.9.3rvm use 1.9.3 --default