Installing mysql2 gem on Mac os x Lion

Question

The other day I updated to Mac OSX Lion. It broke my rails install as I had to re complie mysql. While I have got that working reinstalling the mysql2 gem has become problematic

Answer 1

I solved this issue by reinstalling ruby--which appears to be required since the compilers are updated in Lion.

Answer 2

1. From terminal $ locate mysql_config so you can find path to it
2. Then $ sudo gem install mysql2 -- –with-mysql-config=/path/to/mysql_config

Answer 3

Don't know if this will help, but lemme try.

To make mysql2 gem working under my OSX Lion, running Ruby 1.8.7:

Install mysql - Download mysql-5.5.14-osx10.6-x86_64

Create an alias inside .bash_profile to mysql e MySQLCOM

• alias mysql="/usr/local/mysql/bin/mysql"
• alias mysqld="sudo /Library/StartupItems/MySQLCOM/MySQLCOM"

Install gem 'mysql2', '0.3.6'

Create this symbolic link:

sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

Answer 4

I got this installed in the system Ruby (1.8.7 on Lion) as follows:

1. Install 64-bit MySQL 5.5.19 64-bit from the .dmg

2. Add /usr/local/mysql/lib to your DYLD_LIBRARY_PATH (I prefer this to the symbolic link solution but they should be equivalent). I did this in my .bash_profile via:

   export DYLD_LIBRARY_PATH="/usr/local/mysql/lib:$DYLD_LIBRARY_PATH"
   

3. Execute:

   env ARCHFLAGS="-arch x86_64" sudo gem install mysql2 -- --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