未能在Mac OS X上安装nokogiri和webrat

Question

我试图在我的Mac上安装webrat，但是我有错误，图标v.h丢失。这里是日志：

Building native extensions. This could take a while... 
ERROR: Error installing webrat: 
ERROR: Failed to build gem native extension. 

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 
checking for iconv.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... no 
iconv is missing. try 'port install iconv' or 'yum install iconv' 
*** 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/1.8/usr/bin/ruby 
--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 


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.1 for inspection. 
Results logged to /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.1/ext/nokogiri/gem_make.out 

奇怪的是，iconv.h已经在/ opt/local/include /目录中。

任何人都可以推荐一个解决方案吗？

THX， 礼服

Answer 1

好吧，我解决它在我自己的。 经过几天的研究和尝试，我发现，我的g ++和gcc的安装被破坏了。我已经通过macports安装了g ++的更新，并且在我当前用户的.profile文件中，来自macports的PATH var中有一个值。我删除它，现在它可以工作。

的PATH VAR应该是这样的：

export PATH=/opt/local/bin:/opt/local/sbin:$PATH 

Answer 2

上引入nokogiri网站更多的帮助，使用MacPorts的或自制为Mac OS X上安装：

http://nokogiri.org/tutorials/installing_nokogiri.html

对于iconv相关问题，请参考github上的这个问题：

https://github.com/tenderlove/nokogiri/issues/381