如何使用readline支持重新安装ruby？

Question

我已经按照https://github.com/wayneeseguin/rvm#installation上的说明通过RVM安装了Ruby 。

有关信息，我拥有所有档案（readline-5.2.tar.gz，readline-6.2.tar.gz，ruby-1.9.3-p327.tar.bz2，rubygems-1.8.24.tgz，wayneeseguin-rvm-stable。 tgz和yaml-0.1.4.tar.gz），但~/.rvm/archives我不想以任何方式重新下载它们。

当我做：

sudo /usr/bin/apt-get install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison subversion pkg-config

我得到：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'libxslt1-dev' instead of 'libxslt-dev'
Note, selecting 'libncurses5-dev' instead of 'ncurses-dev'
libtool is already the newest version.
sqlite3 is already the newest version.
libxslt1-dev is already the newest version.
libc6-dev is already the newest version.
openssl is already the newest version.
git-core is already the newest version.
subversion is already the newest version.
zlib1g is already the newest version.
libncurses5-dev is already the newest version.
curl is already the newest version.
libreadline6 is already the newest version.
libyaml-dev is already the newest version.
autoconf is already the newest version.
pkg-config is already the newest version.
libxml2-dev is already the newest version.
build-essential is already the newest version.
libssl-dev is already the newest version.
libreadline6-dev is already the newest version.
automake is already the newest version.
zlib1g-dev is already the newest version.
bison is already the newest version.
libsqlite3-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

我什至做到了：

$ rvm pkg install readline
$ rvm reinstall 1.9.2 --with-readline-dir=$rvm_path/usr

但我仍然得到这个irb：

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.io/packages/readline/ . Be sure you 'rvm remove X ; rvm install X' to re-compile your ruby with readline support after obtaining the readline libraries.

我已经完成了4-5次重新安装过程。

Answer 1

关于什么

rvm reinstall 1.9.3

一旦安装了基本的依赖项（例如构建要点等），就可以执行此操作。我遇到了类似的问题，必须安装一些依赖项，然后重新安装ruby可以解决问题。

下面的依赖项列表

sudo apt-get install build-essential openssl libreadline6 libreadline6-dev curl git-core \
zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev \
autoconf libc6-dev libncurses5-dev automake libtool bison subversion pkg-config

Answer 2

如果您安装了软件包，那么您的 ruby​​ 很可能已安装了 readline 支持rvm requirements。

您可以通过运行以下命令来验证 readline 是否已安装：

rvm use 1.9.3
find $MY_RUBY_HOME -name readline.so | xargs ldd

从我在回复中看到的情况来看，必须重复正确的流程：

rm -rf $rvm_path/usr/
rvm get head
rvm remove 1.9.3
rvm install 1.9.3 --debug

如果您仍然无法使其工作 - 请确保重复上述步骤，不要添加额外的标志或开关，确保清理/etc/rvmrc并~/.rvmrc清除额外的编译标志。如果全部失败，请提供rvm install 1.9.3 --debug命令的输出。