ruby 1.9 irb rails console不能用readline问题

Update: 2012/03/27
当前版本ruby1.9.3p135
ubuntu 11.10

解决办法先试试

rvm requirements
#先安装依赖的包
rvm remove 1.9.2
rvm install 1.9.2

遇到问题是rvm use用不了，其他都能用，提示

引用

RVM is not a function, selecting rubies with 'rvm use ...' will not work.

是一个所谓的“Run as login shell”问题，官方有介绍https://rvm.beginrescueend.com/integration/gnome-terminal/
实际设计多用户登录什么的问题，就是把如下放到.bashrc,不要放到其他什么bash_profile

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"

source ~/.bashrc

问题现象就是

引用

Readline was unable to be required, if you need completion or history install readline then reinstall the ruby.
You may follow 'rvm notes' for dependencies and/or read the docs page https://rvm.beginrescueend.com/packages/readline/ . Be sure you 'rvm remove X ; rvm install X' to re-compile your ruby with readline support after obtaining the readline libraries.

标准的解决办法是
https://rvm.beginrescueend.com/packages/readline/

问题是我一进行到这一步就有问题

$ cd $HOME/.rvm/src/ruby-1.9.2-p0/ext/readline
$ ruby extconf.rb -- --with-readline-dir="$HOME/.rvm/usr"

引用

checking for tgetnum() in -lncurses... yes
checking for readline/readline.h... yes
checking for readline/history.h... yes
checking for readline() in -lreadline... no

后来发现两个问题：
1. 路径

ruby extconf.rb -- --with-readline-dir='/home/ra/.rvm/usr/include/readline'

一个是没有装

sudo aptitude install libreadline-dev
sudo aptitude install libreadline5-dev libncurses5-dev

够新的呢要换6

sudo aptitude install libreadline6-dev 

1.9.3参考

rvm pkg install openssl #older format - rvm package install openssl
rvm pkg install iconv #older format - rvm package install iconv
rvm pkg install readline#rails console缺少的lib
rvm remove 1.9.3
rvm install 1.9.3 -C --with-openssl-dir=\$HOME/.rvm/usr,--with-iconv-dir=\$HOME/.rvm/usr, --with-readline-6.2-dir=\$HOME/.rvm/usr 
rvm 1.9.3 --default

还是ubuntu的readline error

引用

undefined symbol: UP

ls /usr/local/lib

su
mkdir temp
mv /usr/local/lib/libreadline* temp
ldconfig
apt-get update

rm -rf /usr/local/lib/temp