发布于 2016-01-24 08:57:23 | 188 次阅读 | 评论: 1 | 来源: 网友投递

这里有新鲜出炉的精品教程,程序狗速度看过来!

RubyGems Ruby程序包管理器

RubyGems是一个方便而强大的Ruby程序包管理器( package manager),类似RedHat的RPM.它将一个Ruby应用程序打包到一个gem里,作为一个安装单元。 特点: 能远程安装包 包之间依赖关系的管理 简单可靠的卸载(uninstallation) 查询机制,能查询本地和远程服务器的包信息 能保持一个包的不同版本 基于Web的查看接口,能查看你安装的gem的信息。


这篇文章主要介绍了mac os gem安装json出现error failed的解决办法,系统是mac os Mavericks,失败提示Failed to build gem native extension,需要的朋友可以参考下

升级到最新的mac os Mavericks。装json出现错误:


gem install json -v '1.8.1'


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

    /usr/local/var/rbenv/versions/2.0.0-p247/bin/ruby extconf.rb
creating Makefile

make "DESTDIR="
compiling generator.c
In file included from /usr/local/var/rbenv/versions/2.0.0-p247/include/ruby-2.0.0/ruby.h:33,
                 from ../fbuffer/fbuffer.h:5,
                 from generator.c:1:
/usr/local/var/rbenv/versions/2.0.0-p247/include/ruby-2.0.0/ruby/ruby.h:51:21: error: string.h: No such file or directory
/usr/local/var/rbenv/versions/2.0.0-p247/include/ruby-2.0.0/ruby/ruby.h:61:21: error: stdint.h: No such file or directory
/usr/local/var/rbenv/versions/2.0.0-p247/include/ruby-2.0.0/ruby/ruby.h:64:23: error: inttypes.h: No such file or directory
/usr/local/var/rbenv/versions/2.0.0-p247/include/ruby-2.0.0/ruby/ruby.h:68:19: error: stdio.h: No such file or directory
解决办法:

xcode-select --install


需要重新安装Command Line Developer Tools

如果这个办法还是不行,mac下需要安装下apple-gcc42

brew install apple-gcc42


注意brew 0.9.4应该是不带apple-gcc42的源的,可以使用brew doctor检查下是否和Mavericks兼容,这里需要升级

brew update


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ysqghf 发布于2016-02-27 06:38:00
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