WPILib and FRC default code

[CRBreingan]

My team used Easy C last year to learn how to program and i guess it worked for what we wanted it to do.
However we wanted more of a challenge so we decided that we were going to write all of my code in MPLab this year.
So far i haven't had a problem with that.

EasyC made programming very fast and... well, easy (hence the name).
And if i'm ever in a pinch and i don't know how to write something in C i'd like to be able to look at how it's written in EasyC so that i can get it done quicker in MPLab. I tried to include the WPI library file in my MPLAB workspace but i keep getting errors saying that there are things being defined more than once.
I just want to add onto the FRC default code from IFI and use easyC to write a piece of code if i don't know how or if i get to lazy to type it.

Basically what i want to do... i guess... is have the robot look to the WPLib secondary to the FRC default library. If something isn't defined in FRC default then it should look in WPI. Is that possible?