blocks|key|205030|text|错误在mkmf.log文件中。该文件应该位于/home/hxh/.rvm/gems/ruby-1.9.3-p448/gems/linecache-0.46/ext/linecache/mkmf.log。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|205031|如果不是，您可以使用|205032|sudo+find+/+-name+mkmf.log|code-block|syntax|javascript|205033|才能找到它。|205034|要进一步排除故障，请参阅"How+to+install+Nokogiri+Ruby+gem+with+mkmf.log+saying+libiconv+not+found?“|205035|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/12336160/how-to-install-nokogiri-ruby-gem-with-mkmf-log-saying-libiconv-not-found^0|M|26|0|0|0|0|D|21|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|12|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|13|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|Q|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

The error is in the mkmf.log file. That file should be located at <code>/home/hxh/.rvm/gems/ruby-1.9.3-p448/gems/linecache-0.46/ext/linecache/mkmf.log</code>. 

If not, you can use 

<pre><code>sudo find / -name mkmf.log
</code></pre>

to find it. 

To troubleshoot further, see "<a href="https://stackoverflow.com/questions/12336160/how-to-install-nokogiri-ruby-gem-with-mkmf-log-saying-libiconv-not-found">How to install Nokogiri Ruby gem with mkmf.log saying libiconv not found?</a>"

blocks|key|4711047|text|我的mkmf.log显示，gcc+(我认为是4.8.2)不喜欢atomic使用的特定参数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4711048|$+gem+install+atomic|code-block|syntax|javascript|4711049|所以我遇到了一个非常类似的情况。对我来说，答案是升级gcc/gcc-libs和lib工具。|4711050|我使用Arch+linux，而且只使用Arch+linux。执行此操作的正确方法是运行|4711051|$+sudo+pacman+-Syu|4711052|它会升级所有系统包。|4711053|我安装了Rails，从那以后就没有运行过系统更新，这就是问题的来源。在大多数其他*nix发行版中，您将按名称更新到这些包的最新版本，即使用apt，它将类似于|4711054|$+sudo+apt-get+update|4711055|紧接着是|4711056|$+sudo+apt-get+upgrade+{package-name}|4711057|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|12|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

My mkmf.log showed that gcc (4.8.2 I think) didn't like a specific argument that was being used by atomic on 

<pre><code>$ gem install atomic
</code></pre>

So I had a very similar situation. The answer for me was to upgrade gcc/gcc-libs and lib tool.

I use Arch linux, and only Arch linux. The proper way to do this is to run 

<pre><code>$ sudo pacman -Syu
</code></pre>

which upgrades all system packages. 

I installed Rails and hadn't run a system update since, which is where the issue came from. In most other *nix distros, you would update to the latest version of these packages by name, i.e. with apt, it would be something along the lines of

<pre><code>$ sudo apt-get update
</code></pre>

followed by

<pre><code>$ sudo apt-get upgrade {package-name}
</code></pre>

blocks|key|4711100|text|不管怎样，在使用Ruby+2.0.0时，我在OSX+10.10上遇到了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4711101|我最终运行了brew+update，它解决了一些冲突，然后安装了gem，一切都很好。|offset|length|style|CODE|4711102|entityMap^0|0|6|B|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

For what it's worth, using Ruby 2.0.0 I was having this problem on OSX 10.10.

I ended up running <code>brew update</code>, which resolved some conflicts, then installed the gem and it was fine.

blocks|key|205167|text|这似乎是经gcc允许的问题..然而，如果你使用的是OS，如果你已经更新了你的XCode，但是还没有同意他们的条款和条件，你可能会遇到这个问题。试着在你的终端中输入gcc，如果你同意了，它会告诉你什么。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|205168|entityMap^0|29|3|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

It seems to be a issue with permission of gcc.. however, if you're using OS X, you may encounter this issue if you've updated your XCode but haven't agree to their terms &amp; conditions yet.. try typing <code>gcc</code> in your terminal would show you what if you've agreed.

blocks|key|4711186|text|我使用的是Mac+El+Capitan。在我的例子中，这是由于缺少开发人员工具造成的。我通过xcode-select+--install安装开发人员工具解决了这个问题。在此之后，捆绑包安装再次正常工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4711187|entityMap^0|1A|M|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I am using Mac El Capitan. In my case it was caused by the missing developer tool. I solved it by installing the developer tool via <code>xcode-select --install</code>. After that bundle install worked fine again.

blocks|key|205254|text|您很可能缺少一些文件头(例如zlib或libiconv)，因此请尝试安装它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|205255|Linux：sudo+apt-get+install+libz-dev+libiconv-hook1+libiconv-hook-dev|offset|length|style|CODE|205256|OS+X：brew+install+libiconv+&&+xcode-select+--install|205257|否则，请检查您的mkmf.log文件以获取更具体的详细信息。|205258|entityMap^0|0|6|1Q|0|5|1B|0|8|8|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|M|$]]

You're most likely missing some file headers (e.g. zlib or libiconv), so try installing them.

Linux: <code>sudo apt-get install libz-dev libiconv-hook1 libiconv-hook-dev</code>

OS X: <code>brew install libiconv &amp;&amp; xcode-select --install</code>

Otherwise check your <code>mkmf.log</code> file for more specific details.

blocks|key|4711292|text|我遇到这个问题是因为gcc在我的机器上不可用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4711293|已通过安装gcc修复此问题。|4711294|sudo+apt+install+build-essential|code-block|syntax|javascript|4711295|entityMap^0|A|3|0|5|3|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

I had the issue because <code>gcc</code> wasn't available on my machine.

Fixed it by installing <code>gcc</code>.

<pre class="lang-sh prettyprint-override"><code>sudo apt install build-essential
</code></pre>

blocks|key|205367|text|这对我很有效。问题出在Nokogiri。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|205368|如果您使用的是Alpine-Linux(或适用于您的操作系统的等效命令)，请尝试以下操作|205369|apk+add+build-base|code-block|syntax|javascript|205370|然后安装nokogiri，如下所示|205371|gem+install+nokogiri+--+--without-pkg-config+--with-libxml-2.0-config|205372|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This worked for me. Nokogiri was the problem.
Try the following if you are using Alpine-Linux(or equivalent command for your OS)
<pre><code>apk add build-base
</code></pre>
And then install nokogiri as given below
<pre><code>gem install nokogiri -- --without-pkg-config --with-libxml-2.0-config
</code></pre>

blocks|key|4711368|text|这个问题可以通过下一条命令解决：sudo+apt+install+build-essential|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4711369|entityMap^0|G|W|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The problem is resolved with next command: <code>sudo apt install build-essential</code>

blocks|key|205414|text|安装RVM并使用它安装Ruby+2.6.x：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|205415|curl+-sSL+https://get.rvm.io+%7C+bash
rvm+install+2.6.x
rvm+use+ruby-2.6.x|code-block|syntax|javascript|205416|现在试一试，它应该会起作用：|205417|sudo+gem+install+cocoapods|205418|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Install RVM and use it to install Ruby 2.6.x:
<pre><code>curl -sSL https://get.rvm.io | bash
rvm install 2.6.x
rvm use ruby-2.6.x
</code></pre>
Now try and it should work:
<pre><code>sudo gem install cocoapods
</code></pre>

blocks|key|205444|text|这对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|205445|sudo+apt-get+install+libmysqlclient-dev|code-block|syntax|javascript|205446|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This worked for me:
<pre><code>sudo apt-get install libmysqlclient-dev
</code></pre>

My Rails is <code>3.2.1.4</code>, Ruby is <code>1.9.3p448</code>.

I got an error when I install <code>ruby-debug</code>:

<pre><code>Building native extensions. This could take a while...
ERROR: Error installing ruby-debug:
 ERROR: Failed to build gem native extension.

 /home/hxh/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb
Can't handle 1.9.x yet
*** 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=/home/hxh/.rvm/rubies/ruby-1.9.3-p448/bin/ruby


Gem files will remain installed in /home/hxh/.rvm/gems/ruby-1.9.3-p448/gems/linecache-0.46 for inspection.
Results logged to /home/hxh/.rvm/gems/ruby-1.9.3-p448/gems/linecache-0.46/ext/gem_make.out
</code></pre>

Who can tell me where the error is?

ruby-debug Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers

Linux

我的Rails是3.2.1.4，Ruby是1.9.3p448。安装ruby-debug时出现错误Building native extensions.  This could take a while...ERROR:  Error installing ruby-debug:        ERROR: Failed...

问由于某种原因，ruby-debug无法创建Makefile，可能缺少所需的库和/或头文件
EN

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