Installing MySQL gem on Mac OS X Leopard for Rails 2.3.5

rubyonrails-talk
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Hi,

Ive got Mac OS 10.5.8 and MySQL 5.0.67-osx10.5-x86 (installed in /usr/ local/mysql) working fine with my Rails 2.1.0 applications.

Im trying a test run of Rails 2.3.5 and having to install the MySQL gem is literally driving me crazy! Ive tried all the following commands, with sudo and without and I'm getting the same error for all of them, ie.

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.

The commands I've tried after much Googling and blog posts are,

env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/ usr/local/mysql/bin/mysql_config env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-dir=/usr/ local/mysql --with-mysql-lib=/usr/local/mysql/lib --with-mysql- include=/usr/local/mysql/include env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-dir=/usr/ local/mysql --with-mysql-lib=/usr/local/mysql/lib --with-mysql- include=/usr/local/mysql/include --with-mysql-config=/usr/local/mysql/ bin/mysql_config env ARCHFLAGS="-arch i386" gem install mysql --with-mysql-dir=/usr/ local/mysql gem install mysql -- --with-mysql-dir=/usr/local/mysql gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/ mysql_config

As advised by the gem install o/p, I checked the mkmf.log file in / Users/<user>/.gem/ruby/1.8/gems/mysql-2.8.1/ext/mysql_api/mkmf.log and found this - "ld: library not found for -lmysqlclient" .

Hope someone can help me fix this. Quite frustrating!

Danke!

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Anyone?

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I met the same problem on Cent OS 5.3. My solution is follow: 1. sudo yum install mysql-devel.x86_64 2. gem install mysql So you need mysql-devel package For Mac, I found some answers from

you can try this:    Ruby/MySQL to download the tar file, and run the command below    # ruby ./install.rb

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Hi Ram,

Dan Benjamin and Dan Benjamin

:smiley:

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Hello Ryan,

Thank you for your response. I downloaded and installed the tar file but that dint help in installing the gem either.

I want to get a few things right first,

1. I have mysql 5.0.67 x86 version installed which seems to be a 32 bit version. But I have a 64 bit Intel Core 2 duo processor. Can that cause issues? 2. Does "checking for mysql_query() in -lmysqlclient... no" mean im missing the mysql-dev package?

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Okay ... RESOLVED! :smiley:

I left the mysql installation as such in /usr/local . I had been running the ruby and rails shipped with leopard Followed the hivelogic article above to roll my own installations on / usr/loca/ and then ran "sudo gem install mysql -- --with-mysql-dir=/ usr/local/mysql" . Worked like a charm!

Thank you all for the help!