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）在~/.rvm/archives 目录中，我不想以任何方式重新下载它们。

当我这样做时：

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

我明白了：

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.

我什至做过：

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

但我仍然在irb 上得到这个：

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.

我已经重新安装了 4-5 次。

Answer 1

怎么样

rvm reinstall 1.9.3

一旦你安装了基本的依赖项，比如构建要素等，你就可以这样做。我遇到了类似的问题，我不得不安装一些依赖项，然后重新安装 ruby​​ 就可以了。

下面的依赖列表

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

考虑到您有 RVM，您应该利用有用的命令 rvm requirements，因为这将为您提供您需要为您的特定环境/操作系统运行的命令。

Answer 3

如果您安装了来自 rvm requirements 的软件包，您的 ruby​​ 很可能安装了 readline 支持。

您可以通过运行验证是否安装了 readline：

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

根据我在回复中看到的，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正常工作 - 请确保重复上述步骤，不要添加额外的标志或开关，确保从额外的编译标志中清除 /etc/rvmrc 和 ~/.rvmrc。如果全部失败，请提供rvm install 1.9.3 --debug 命令的输出。

Answer 4

你可能只是用老式的 configure / make 方式重建 ruby​​ 可执行文件。不应该花那么长时间。优点是它会利用它找到的依赖项，例如 readline。