我遇到了这个问题中描述的确切问题：MYSQL Installation Troubles。不幸的是，没有一个答案对我有帮助（而且它已经关闭）。
我尝试学习Ruby on Rails并且不让MySQL工作（因此它与编程相关）。
我输入了rake db:create并得到了：
!!!The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
rake aborted!
no such file to load -- mysql
(See full trace by running task with --trace)
HD-Auckland:shoutbox max$ gem install mysql
WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /Users/max/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... 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.
Gem files will remain installed in /Users/max/.gem/ruby/1.8/gems/mysql-2.8.1 for inspection.
Results logged to /Users/max/.gem/ruby/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out
因为它告诉我我尝试了sudo gem install mysql并得到了：
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/opt/local/bin/ruby extconf.rb
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... 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=/opt/local/bin/ruby
--with-mysql-config
--without-mysql-config
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mlib
--without-mlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-zlib
--without-zlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-socketlib
--without-socketlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-nsllib
--without-nsllib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mygcclib
--without-mygcclib
--with-mysqlclientlib
--without-mysqlclientlib
Gem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/mysql-2.8.1 for inspection.
Results logged to /opt/local/lib/ruby/gems/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out
我也试过这个命令sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config并得到了同样的错误！
我该怎么办？我只想将我的数据库迁移到MySQL服务器！
感谢您的帮助，Mexx
嘿，大家好的回应！是的我在Snow Leopard上。 我从这里http://dev.mysql.com/downloads/mysql/5.1.html#macosx-dmg下载了mysql并安装了它。 然后我按照Hivelogic的指南安装了mysql。
我现在输入：sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config或sudo gem istall mysql或sudo gem install mysql -- --with-mysql-dir=/usr/local/mysql
我会得到：
Building native extensions. This could take a while...
fotoSuccessfully installed mysql-2.8.1
1 gem installed
Installing ri documentation for mysql-2.8.1...
No definition for next_result
No definition for field_name
No definition for field_table
No definition for field_def
No definition for field_type
No definition for field_length
No definition for field_max_length
No definition for field_flags
No definition for field_decimals
No definition for time_inspect
No definition for time_to_s
No definition for time_get_year
No definition for time_get_month
No definition for time_get_day
No definition for time_get_hour
No definition for time_get_minute
No definition for time_get_second
No definition for time_get_neg
No definition for time_get_second_part
No definition for time_set_year
No definition for time_set_month
No definition for time_set_day
No definition for time_set_hour
No definition for time_set_minute
No definition for time_set_second
No definition for time_set_neg
No definition for time_set_second_part
No definition for time_equal
No definition for error_errno
No definition for error_sqlstate
Installing RDoc documentation for mysql-2.8.1...
No definition for next_result
No definition for field_name
No definition for field_table
No definition for field_def
No definition for field_type
No definition for field_length
No definition for field_max_length
No definition for field_flags
No definition for field_decimals
No definition for time_inspect
No definition for time_to_s
No definition for time_get_year
No definition for time_get_month
No definition for time_get_day
No definition for time_get_hour
No definition for time_get_minute
No definition for time_get_second
No definition for time_get_neg
No definition for time_get_second_part
No definition for time_set_year
No definition for time_set_month
No definition for time_set_day
No definition for time_set_hour
No definition for time_set_minute
No definition for time_set_second
No definition for time_set_neg
No definition for time_set_second_part
No definition for time_equal
No definition for error_errno
No definition for error_sqlstate
执行rake db:create最终将会：
(in /Users/max/rails/shoutbox)
!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
rake aborted!
no such file to load -- mysql
(See full trace by running task with --trace)
答案 0 :(得分：7)
出于某种原因（可能因为我使用的是rubygems 1.3.7或安装mysql-2.8.1）
sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
对我不起作用所以看了gems / mysql-2.8.1 / ext / mysql_api / extconf.rb我发现extconf.rb在PATH中查找mysql_config所以我试过
export PATH=$PATH:/usr/local/mysql/bin
sudo gem install mysql
并完成了工作
答案 1 :(得分：1)
sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
答案 2 :(得分：1)
我自己遇到了MySQL gem的问题，这些是我实际收藏的唯一2个链接，所以其中一个实际上对我有效。以为我会分享。
答案 3 :(得分：0)
要在OS X上安装MySQL gem，您需要安装安装盘上的XCode开发人员工具。您也可以从http://developer.apple.com下载它们。
答案 4 :(得分：0)
我只是使用此命令结束了该问题：
sudo env ARCHFLAGS="-arch i386" gem install --no-rdoc --no-ri mysql -v 2.8.1 -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
确实我需要在我的mac OS X Leopard 10.5.8上安装mysql gem版本2.8.1，从dmg文件运行mysql-5.6.2-m5-osx10.5-x86。我有一个问题，它无法找到库，我做了一些操作，然后由于权限无法安装。我发现了那个命令，添加了我需要的版本并将架构更改为与我的mysql安装相对应的版本。
所以，如果有人还想安装那个版本:)让我们试试吧！但是我们可能不是很多安装这个，而不是Leopard！
答案 5 :(得分：0)
使用的正确宝石是mysql2。
答案 6 :(得分：0)
我遇到了同样的问题。我解决了先安装适配器的问题：
gem install activerecord-mysql2-adapter
然后，使用
安装mysql2 gemsudo gem install mysql2 -- --with-mysql-config=/usr/local/mysql/bin/mysql_config