ruby - 在 Mac OS X 上安装 Nokogiri gem 时出错

Question

我试图在我的 Mac OSx 上为 Rally 和 bugzilla 安装连接器。在运行安装脚本时，它会尝试安装 gem 并查找我机器上已经存在的 libxml2。

当它尝试安装 nokogiri 时会发生这种情况。

这是成绩单:

Building native extensions with: '--use-system-libraries'
This could take a while...
ERROR:  Error installing nokogiri:
    ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby -r ./siteconf20150121-48754-wgouyu.rb extconf.rb --use-system-libraries
Extracting libxml2-2.8.0.tar.gz into tmp/x86_64-apple-darwin13.4.0/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 /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.1/ports/x86_64-apple-darwin13.4.0/libxml2/2.8.0)...
Extracting libxslt-1.1.26.tar.gz into tmp/x86_64-apple-darwin13.4.0/ports/libxslt/1.1.26... OK
Running 'configure' for libxslt 1.1.26... OK
Running 'compile' for libxslt 1.1.26... OK
Running 'install' for libxslt 1.1.26... OK
Activating libxslt 1.1.26 (from /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.1/ports/x86_64-apple-darwin13.4.0/libxslt/1.1.26)...
checking for libxml/parser.h... yes
checking for libxslt/xslt.h... yes
checking for libexslt/exslt.h... yes
checking for iconv_open() in iconv.h... no
checking for iconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... no
-----
`  libxml2 is missing.  please visit http://nokogiri.org/tutorials /installing_nokogiri.html for help with installing dependencies.`
-----
*** 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
    --without-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=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
    --with-zlib-dir
    --without-zlib-dir
    --with-zlib-include
    --without-zlib-include=${zlib-dir}/include
    --with-zlib-lib
    --without-zlib-lib=${zlib-dir}/lib
    --with-iconv-dir
    --without-iconv-dir
    --with-iconv-include
    --without-iconv-include=${iconv-dir}/include
    --with-iconv-lib
    --without-iconv-lib=${iconv-dir}/lib
    --with-xml2-dir
    --without-xml2-dir
    --with-xml2-include
    --without-xml2-include=${xml2-dir}/include
    --with-xml2-lib
    --without-xml2-lib=${xml2-dir}/lib
    --with-xslt-dir
    --without-xslt-dir
    --with-xslt-include
    --without-xslt-include=${xslt-dir}/include
    --with-xslt-lib
    --without-xslt-lib=${xslt-dir}/lib
    --with-libxslt-config
    --without-libxslt-config
    --with-pkg-config
    --without-pkg-config
    --with-libxml-2.0-config
    --without-libxml-2.0-config
    --with-pkg-config
    --without-pkg-config
    --with-libiconv-config
    --without-libiconv-config
    --with-pkg-config
    --without-pkg-config
    --with-iconvlib
    --without-iconvlib
    --with-xml2lib
    --without-xml2lib

extconf failed, exit code 1

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.1 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13/2.0.0/nokogiri-1.6.1/gem_make.out

我尝试了很多选项，例如通过运行以下命令安装命令行工具。 xcode-select --install

将符号链接(symbolic link)添加到 gcc 编译器

sudo ln -s /usr/bin/llvm-gcc /usr/bin/gcc-4.2

这两天我一直在挣扎。非常感谢任何帮助。

Answer 1

如果您使用的是 brew，请在终端中使用:

brew unlink gcc-4.2      # you might not need this step
gem uninstall nokogiri
xcode-select --install
gem install nokogiri

如果这不起作用，请检查“Installing Nokogiri on OSX 10.10 Yosemite”