关于Ruby Gem在Windows上安装，遇到编译问题的解决思路

转自:http://hi.baidu.com/kenrome/blog/item/d3803da859b485a7ca130c05.html

 

往往许多gem都是提供的源代码，当安装当本地时候会进行编译的过程。所以在Windows系统下，就经常遇到gem编译失败而导致安装的不成功。

我最近遇到就有安装 Hpricot, PageRankr两个gem的问题。

首先说一下Hpricot

在运行： gem install hpricot

的时候，发生编译问题。然后试：

gem install hpricot --platform=mswin32

安装成功，这个问题就在于，gem源没有选择mswin32.

 

但是安装PageRank就没那么幸运了，遇到都是编译的问题，解决办法是参照：http://stackoverflow.com/questions/1718500/installing-hpricot-on-ruby-1-9-1-on-windows  中提到的，下载DevKit rubyinstaller.org/downloads  提供的mingw环境安装。

 

安装Hpricot的错误代码：

Administrator@MOVEPC ~/Documents/NetBeansProjects/WebSpiderCode (master)

$ gem install hpricot

Building native extensions.  This could take a while...

ERROR:  Error installing hpricot:

        ERROR: Failed to build gem native extension.

 

        c:/Ruby187/bin/ruby.exe extconf.rb

checking for stdio.h... 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

        --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=c:/Ruby187/bin/ruby

 

 

Gem files will remain installed in c:/Ruby187/lib/ruby/gems/1.8/gems/hpricot-0.8.4 for inspection.

Results logged to c:/Ruby187/lib/ruby/gems/1.8/gems/hpricot-0.8.4/ext/fast_xs/gem_make.out

 

Administrator@MOVEPC ~/Documents/NetBeansProjects/WebSpiderCode (master)

$ gem install hpricot --platform=mswin32

Fetching: hpricot-0.8.4-i386-mswin32.gem (100%)

Successfully installed hpricot-0.8.4-x86-mswin32

1 gem installed

Installing ri documentation for hpricot-0.8.4-x86-mswin32...

Installing RDoc documentation for hpricot-0.8.4-x86-mswin32...

 

Administrator@MOVEPC ~/Documents/NetBeansProjects/WebSpiderCode (master)