Compiling a modular mod

Hey guys,

I've been working on making my mod modular- IE, I have a "core" mod and then other "modules" which use elements from the core.

I was told the best way to do this when using multiple projects, is to add the core to the build path.

I had everything working nicely in Eclipse, but upon compiling, the compile fails because it can't find the core class files which the module is referencing.

Any suggestions on how I can get around this issue?

EDIT:

Fixed on IRC. I needed to put the .jar in the lib folder for the compiler to find it