Mac OS X(Lion)にrbenvをインストール

mac ruby

前提：Homebrewがインストールされていること。
Mac OS X(Lion)にHomebrewをインストール - Change The Worlds

1. rbenvをインストール



$ brew install rbenv

==> Downloading https://github.com/sstephenson/rbenv/tarball/v0.3.0

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==> Caveats

To enable shims and autocompletion, add rbenv init to your profile:

  if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi

==> Summary

/usr/local/Cellar/rbenv/0.3.0: 32 files, 160K, built in 2 seconds

2. 続けて、ruby-buildをインストール



$ brew install ruby-build

==> Downloading https://github.com/sstephenson/ruby-build/tarball/v20120524

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==> ./install.sh

/usr/local/Cellar/ruby-build/20120524: 45 files, 196K, built in 2 seconds
3. .bash_profileにパスを通す。


$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> .bash_profile

$ echo 'eval "$(rbenv init -)"' >> .bash_profile

$ source .bash_profile

4. readlineをインストール



$ brew install readline

==> Downloading http://ftpmirror.gnu.org/readline/readline-6.2.tar.gz

######################################################################## 100.0%

==> Downloading patches

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######################################################################## 100.0%

==> Patching

patching file vi_mode.c

patching file callback.c

patching file support/shobj-conf

patching file patchlevel

==> ./configure --prefix=/usr/local/Cellar/readline/6.2.2 --mandir=/usr/local/Cell

==> make install

==> Caveats

This formula is keg-only, so it was not symlinked into /usr/local.
OS X provides the BSD libedit library, which shadows libreadline.

In order to prevent conflicts when programs look for libreadline we are

defaulting this GNU Readline installation to keg-only.
Generally there are no consequences of this for you.

If you build your own software and it requires this formula, you'll need

to add its lib & include paths to your build variables:
    LDFLAGS  -L/usr/local/Cellar/readline/6.2.2/lib

    CPPFLAGS -I/usr/local/Cellar/readline/6.2.2/include

==> Summary

/usr/local/Cellar/readline/6.2.2: 30 files, 1.6M, built in 21 seconds