mysql.h is missing … (Ruby on Rails, OSX)

Question

I tried several ideas ... none of them worked ... I\'m just trying to install mysql2 as a gem. My mysql is working, but every time my system says, that mysql.h is missing .

Answer 1

Installing a gem sometimes involves compiling source. In this case the MySQL gem needs to create the ruby interface by compiling the C code -- you most likely need to install the MySQL development files.

(missed the OSX reference earlier)