Install ree-1.8.7 with RVM on Mountain Lion [duplicate]

Answer 1

try

rvm reinstall 1.8.7 --without-tcl --without-tk

but still your problem might to be related to gcc-4.2 -> it's required for MRI ruby, there are some successes with llvm/clang, but still it fails with Fibers

Answer 2

If you don't need tcl or tk and are using rbenv, this should work:

brew install https://raw.github.com/Homebrew/homebrew-dupes/master/apple-gcc42.rb

CC=/usr/local/bin/gcc-4.2 CONFIGURE_OPTS="--without-tcl --without-tk" rbenv install 1.8.7-p358