为什么在Mac OS上安装Nokogiri失败并缺少libiconv？

Question

我一直试图在Mac OS 10.9.3上安装Nokogiri，无论我如何尝试，最终安装都会失败，并显示以下错误消息：$ sudo gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.9.1/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.9.1/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.28 --with-iconv-include=/usr/local/Cellar/libiconv/1.14/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.14/libBuilding native extensions with: '--with-xml2-include=/usr/local/Cellar/libxml2/2.9.1/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.9.1/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.28 --with-iconv-include=/usr/local/Cellar/libiconv/1.14/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.14/lib'This could take a while...Building nokogiri using packaged libraries.ERROR:  Error installing nokogiri:    ERROR: Failed to build gem native extension.    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb --with-xml2-include=/usr/local/Cellar/libxml2/2.9.1/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.9.1/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.28 --with-iconv-include=/usr/local/Cellar/libiconv/1.14/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.14/libBuilding nokogiri using packaged libraries.checking for iconv.h... yeschecking for iconv_open() in iconv.h... nochecking for iconv_open() in -liconv... nochecking for libiconv_open() in iconv.h... nochecking for libiconv_open() in -liconv... no-----libiconv is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.-----Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.2.1 for inspection.Results logged to /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.2.1/ext/nokogiri/gem_make.out遵循了很多在网上找到的帮助，包括使用brew来构建和安装libxml2和libxslt以及从源代码构建libiconv之后（如“ 安装Nokogiri ”中所述），错误仍然存在。尝试为Nokogiri运行安装时，似乎可以找到libxml2和libxslt，但不能找到libiconv。任何对这些事情有更好了解的人都知道如何安装Nokogiri？

Answer 1

我遇到过同样的问题。不幸的是，“ 安装Nokogiri ”没有涵盖Iconv问题。这是我解决问题的方法。

首先安装homebrew，它将使您的生活更轻松。如果您已经安装了它，请确保通过如下更新来获取最新的公式：

brew update

注意：在OSX 10.9+中，您可能需要安装xCode命令工具以允许您安装libiconv。

xcode-select --install

然后安装更高版本的libiconv

brew install libiconv

然后安装你的宝石

gem install nokogiri -- --with-iconv-dir=/usr/local/Cellar/libiconv/1.14