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 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