mysql2 gem无法在带有Homebrew的OS X上使用MySQL 5.6.12进行编译

问题描述

我更新了用Homebrew安装的所有软件包. MySQL已从5.5.27左右升级到5.6.12:

I updated all the packages I installed with Homebrew. MySQL got upgraded to 5.6.12 (from 5.5.27 or so):

$ mysql --version
mysql  Ver 14.14 Distrib 5.6.12, for osx10.8 (x86_64) using  EditLine wrapper

现在mysql2 gem不再编译了:

and now the mysql2 gem doesn't compile anymore:

$ gem install mysql2
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

        /Users/pupeno/.rvm/rubies/ruby-1.9.3-p429-perf/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.
-----
*** 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
    --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=/Users/pupeno/.rvm/rubies/ruby-1.9.3-p429-perf/bin/ruby
    --with-mysql-config
    --without-mysql-config

/usr/local/Cellar/mysql/5.6.12/include/mysql.h中存在文件mysql.h.有什么想法吗?

The file mysql.h is present in /usr/local/Cellar/mysql/5.6.12/include/mysql.h. Any ideas what's going on?

文件mysql.h没有出现在/usr/local中，因为符号链接似乎比应有的更深:

The file mysql.h doesn't appear in /usr/local because the symlink seems to go deeper than it should:

$ ls -la /usr/local/include/mysql
lrwxr-xr-x  1 pupeno  admin  36 21 Jun 15:18 /usr/local/include/mysql@ -> ../Cellar/mysql/5.6.12/include/mysql

代替

/usr/local/Cellar/mysql/5.6.12/include

话虽如此，我还是手动修复了符号链接，但编译仍然失败.所以我被卡住了.

Having said that, I manually fixed the symlink and the compilation still failed. So I'm stuck.

推荐答案

我遇到了同样的问题，我设法解决了这个问题.我做了很多事情，我不确定是什么，但是使用MySQL 5.6.10似乎行得通.

I had the same problem, I managed to fix it. I did a lot of things, and I don't know for sure what it was, but going to MySQL 5.6.10 seems to have worked.

卸载MySQL 5.6.12:

Uninstall MySQL 5.6.12:

brew unlink mysql
brew uninstall mysql

转到自制目录:

cd /usr/local

转到版本5.6.10(您可以通过运行brew versions mysql找到版本列表:

Go to version 5.6.10 (you can find a list of versions by running brew versions mysql:

git checkout 48f7e86 Library/Formula/mysql.rb

然后再次安装mysql:

Then install mysql again:

brew install mysql

现在gem install mysql2为我工作.

我还从源代码(brew install mysql --build-from-source)安装了mysql，但这并不能解决问题，但可能是解决方案的一部分.

I've also installed mysql from source (brew install mysql --build-from-source), but that didn't solve it, but might be part of the solution.

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