windows 如何在没有“extconf 失败：需要 libxml2”的情况下安装 ruby gem libxml
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How do I install ruby gem libxml without 'extconf failure: need libxml2'
提问by Zaz
I'm currently trying to install a ruby gem which fails because extconf says it needs libxml, so when I follow theseinstructions to install libxml (which includes theseinstructions for the ruby dev kit installation) I get the following output:
我目前正在尝试安装一个失败的 ruby gem，因为 extconf 说它需要 libxml，所以当我按照这些说明安装 libxml（其中包括ruby 开发工具包安装的这些说明）时，我得到以下输出：
$ gem install libxml-ruby --platform x86-mswin32-60
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing libxml-ruby:
ERROR: Failed to build gem native extension.
c:/Ruby/bin/ruby.exe extconf.rb
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... yes
checking for inflate() in -lz... no
checking for inflate() in -lzlib... no
checking for inflate() in -lzlib1... yes
checking for iconv_open() in -liconv... no
checking for libiconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... no
checking for xmlParseDoc() in -llibxml2... no
checking for xmlParseDoc() in -lxml2... no
*** 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
--8<--
--with-xml2lib
--without-xml2lib
extconf failure: need libxml2.
Install the library or try one of the following options to extconf.rb:
--with-xml2-config=/path/to/xml2-config
--with-xml2-dir=/path/to/libxml2
--with-xml2-lib=/path/to/libxml2/lib
--with-xml2-include=/path/to/libxml2/include
Gem files will remain installed in c:/Ruby/lib/ruby/gems/1.9.1/gems/libxml-ruby-2.2.2 for inspection.
Results logged to c:/Ruby/lib/ruby/gems/1.9.1/gems/libxml-ruby-2.2.2/ext/libxml/gem_make.out
I'm on a Windows 7 x64 install using my minGW32-shell/git to install. The install fails with the same message from the windows ruby-enhanced command promt.
我正在使用 minGW32-shell/git 进行 Windows 7 x64 安装。安装失败并显示来自 windows ruby-enhanced 命令提示符的相同消息。
fwiw:
fwiw：
$ ruby -v
ruby 1.9.2p290 (2011-07-09) [i386-mingw32]
$ git --version
git version 1.7.6.msysgit.0
$ gem -v
1.8.10
回答by Kelvin
You should try the nokogirigem instead of using libxml-ruby. It includes the precompiled libxml2 dlls as part of the installation, so you don't have to worry about building it yourself.
您应该尝试使用nokogirigem 而不是使用libxml-ruby. 它包含预编译的 libxml2 dll 作为安装的一部分，因此您不必担心自己构建它。
Nokogiri's API is different from libxml-ruby's, but I'm sure you'll find the same functionality.
Nokogiri 的 API 与 libxml-ruby 的不同，但我相信您会发现相同的功能。
If libxml-ruby is a dependency for another gem or app, you probably can't use nokogiri. What are you trying to do?
如果 libxml-ruby 是另一个 gem 或应用程序的依赖项，则您可能无法使用 nokogiri。你想做什么？
回答by Zaz
I had this as a comment, but was asked to post it as an answer for visibility:
我将此作为评论，但被要求将其发布为可见性的答案：
The answer to this question solved my problem: libxml-ruby failed to load at x86_64
这个问题的答案解决了我的问题：libxml-ruby failed to load at x86_64
回答by Dragan
Try to run
尝试运行
yum install -y gcc ruby-devel libxml2 libxml2-devel libxslt libxslt-devel
Than it should work
比它应该工作
