tmp/notes.txt
$ rvm package help
'rvm package {install,uninstall} {readline,iconv,curl,openssl,zlib,autoconf,ncurses,pkgconfig,gettext,glib,mono,llvm,libxml2}'
'ree_dependencies' installs zlib, ncurses, readline, openssl and iconv in this order.
still need to add '-C --with-readline-dir=$rvm_path/usr,--with-iconv-dir=$rvm_path/usr,--with-zlib-dir=$rvm_path/usr,--with-openssl-dir=$rvm_path/usr' to 'rvm install ree'
$ rvm install ree -C --with-readline-dir=$rvm_path/usr,--with-iconv-dir=$rvm_path/usr,--with-zlib-dir=$rvm_path/usr,--with-openssl-dir=$rvm_path/usr