在 Ruby 2.0.0p353(基于 rvm 的安装)下安装 Nokogiri 1.6.1 失败(OSX Mavericks)? [英] Install Nokogiri 1.6.1 under Ruby 2.0.0p353 (rvm based installation) fails (OSX Mavericks)?

问题描述

我尝试在 Ruby 和 RVM 下安装 Nokogiri 1.6.1，但失败并出现以下错误:

I've tried to install Nokogiri 1.6.1 under Ruby and RVM but is failing with the following error:

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

/Users/lmo0/.rvm/rubies/ruby-2.0.0-p353/bin/ruby extconf.rb 
Extracting libxml2-2.8.0.tar.gz into tmp/x86_64-apple-darwin13.0.0/ports/libxml2/2.8.0... OK
Running 'configure' for libxml2 2.8.0... OK
Running 'compile' for libxml2 2.8.0... OK
Running 'install' for libxml2 2.8.0... OK
Activating libxml2 2.8.0 (from /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/nokogiri-1.6.1/ports/x86_64-apple-darwin13.0.0/libxml2/2.8.0)...
Extracting libxslt-1.1.26.tar.gz into tmp/x86_64-apple-darwin13.0.0/ports/libxslt/1.1.26... OK
Running 'configure' for libxslt 1.1.26... ERROR, review 'tmp/x86_64-apple-darwin13.0.0/ports/libxslt/1.1.26/configure.log' to see what happened.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/lmo0/.rvm/rubies/ruby-2.0.0-p353/bin/ruby
/Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/mini_portile-0.5.2/lib/mini_portile.rb:265:in `block in execute': Failed to complete configure task (RuntimeError)
    from /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/mini_portile-0.5.2/lib/mini_portile.rb:257:in `chdir'
    from /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/mini_portile-0.5.2/lib/mini_portile.rb:257:in `execute'
    from /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/mini_portile-0.5.2/lib/mini_portile.rb:65:in `configure'
    from /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/mini_portile-0.5.2/lib/mini_portile.rb:108:in `cook'
    from extconf.rb:101:in `block in <main>'
    from extconf.rb:131:in `call'
    from extconf.rb:131:in `block in <main>'
    from extconf.rb:122:in `tap'
    from extconf.rb:122:in `<main>'


Gem files will remain installed in /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/nokogiri-1.6.1 for inspection.
Results logged to /Users/lmo0/.rvm/gems/ruby-2.0.0-p353/gems/nokogiri-1.6.1/ext/nokogiri/gem_make.out

推荐答案

检查您的 grep 版本并通过 brew 安装最新版本:

Check your grep version and install latest via brew:

$ grep --version
grep (BSD grep) 2.5.1-FreeBSD

$ brew install grep --default-names

# If above fails, you probably need to tap
$ brew tap homebrew/dupes
$ brew install grep --default-names

$ grep --version
grep (GNU grep) 2.14.56-1e3d

来自(这个 nokogiri 问题)[https://github.com/sparklemotion/nokogiri/issues/935]:最近版本的 OSX 带有 BSD grep，而旧版本带有 GNU grep.而且，您的构建脚本可能需要 GNU grep"

From (this nokogiri issue)[https://github.com/sparklemotion/nokogiri/issues/935]: "recent versions of OSX come with BSD grep, while older ones came with GNU grep. And that, your build script, perhaps requires GNU grep"

从 Maverick 的评论中窃取并在此处复制作为答案而不是评论，因为我现在已经多次遇到这个问题，并且很想省去其他人的麻烦.=X

Stolen from Maverick's comment and duplicated here as an answer and not a comment because I've now run into this issue several times and would love to save someone else the headache. =X

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