gem安装mysql失败

Question

我遵循了http://geryit.com/blog/2011/01/installing-mysql-with-rails-on-mac-os-x-snow-leopard/上的说明，包括通过macport安装ruby。

每当我执行gem安装mysql时，我都会得到以下错误

bash-3.2# gem install mysql
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_ssl_set()... no
checking for rb_str_set_len()... no
checking for rb_thread_start_timer()... no
checking for mysql.h... no
checking for mysql/mysql.h... 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
    --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


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

我怎样才能解决这个问题？我已经使用包文件(.pkg)安装了32位mysql，而且我对ruby非常陌生.

更新4/26/11 5:11 11安装了RVM并更新了ruby到1.9.2，我还查看了张贴在评论上的链接。我做了locate mysql_config，结果是

/usr/local/mysql-5.1.56-osx10.6-x86/bin/mysql_config
/usr/local/mysql-5.1.56-osx10.6-x86/man/man1/mysql_config.1

因此，我尝试了gem install mysql - -with-mysql-config=/usr/local/mysql-5.1.56-osx10.6-x86/bin/mysql_config，但它仍然不起作用.不过，我确实得到了新的错误信息。

/Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:435:in `try_link0'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:440:in `try_link'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:552:in `try_func'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:797:in `block in have_func'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
    from /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/mkmf.rb:796:in `have_func'
    from extconf.rb:50:in `<main>'


Gem files will remain installed in /Users/kyle/.rvm/rubies/ruby-1.9.2-p180/bin/th-mysql-config=/usr/local/mysql-5.1.56-osx10.6-x86/bin/mysql_config/gems/mysql-2.8.1 for inspection.

真的要感谢那些评论..。真的很感激能给予更多的帮助.两天来一直试图安装这个该死的mysql .

Answer 1

通过卸载我系统上的32位MySQL解决了这个问题。并安装了5.1.56 64位.

希望这对那些和我有同样问题的人有帮助。

Answer 2

程序“mysql_config”目前尚未安装。您可以通过键入以下内容来安装：

$ sudo apt-get install libmysqlclient-dev
$ bundle install

bundle show [mysql2] # To find the location.

Answer 3

试试这个：

gem install mysql -- --with-mysql-config=/usr/local/mysql-5.1.56-osx10.6-x86/bin/mysql_config

(注意额外的破折号)

如果这不起作用，我强烈建议使用上面提到的MySQL的自制安装。你可以在这里读到关于汤到坚果的安装：在MacOSX10.6上卸载Rails。