为什么不是“宝石”？和“捆绑”使用相同的libxml2？ [英] Why aren't "gem" and "bundle" using the same libxml2?

问题描述

我似乎处于沮丧的递归循环中。我试图捆绑安装一个项目，但结果如下：

I seem to be in a recursive loop of frustration. I'm trying to "bundle install" a project, but it results in:

An error occurred while installing nokogiri (1.6.6.2), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.6.6.2'` succeeds before bundling.

所以我尝试：

$ gem install nokogiri -v '1.6.6.2'
Building native extensions.  This could take a while...
Successfully installed nokogiri-1.6.6.2
Parsing documentation for nokogiri-1.6.6.2
Done installing documentation for nokogiri after 2 seconds
1 gem installed

都很好！除了运行捆绑安装时，再次提示我需要先安装 gem install nokogiri -v‘1.6.6.2’。

All good! Except that when I run "bundle install", I am again told I need to get "gem install nokogiri -v '1.6.6.2'" to install first. AHHHHH.

mkmf.log文件表明这是libxml2的问题（令人惊讶）。

The mkmf.log file suggests this is an issue with libxml2 (surprise surprise).

conftest.c:3:10: fatal error: 'libxml/xmlversion.h' file not found
#include <libxml/xmlversion.h>
         ^
1 error generated.
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <libxml/xmlversion.h>
4: 
5: #if LIBXML_VERSION < 20621
6: #error libxml2 is way too old
7: #endif
/* end */

因此，搜索libxml2（带有 sudo find / -name libxml2）将显示以下目录，所有目录似乎至少为2.9.0或更高：

So, searching for libxml2 (with "sudo find / -name libxml2") reveals these directories, all of which appear to be at least 2.9.0 or higher:

• / usr / include / libxml2


• / usr / local / Cellar / libxml2


• / usr / local / opt / libxml2

那么，难道找不到libxml2吗？如果是这样，我如何安装捆绑软件以了解nokogiri已经安装，或者至少能够以与 gem install相同的方式进行安装？虽然我想找到一个解决方案，但我真的很想了解幕后的内容，以便将来进行故障排除。

So, is the issue that libxml2 can't be found? And if so, how do I get bundle install to realize that nokogiri is already installed, or at least be able to install it the same way "gem install" does? While I'd like to find a solution for this, I'm really interested in learning what is going on "under the covers" so I can troubleshoot in the future.

推荐答案

在Mac OS X上，我运行了以下命令，问题已得到解决。

On my Mac OS X, I ran these commands, and the problem is fixed.

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

这篇关于为什么不是“宝石”？和“捆绑”使用相同的libxml2？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！