Error: L6200E: Symbol SystemInit multiply defined (by system_tm4c123.o and mazinterrupt.o).

Thanks and yes I do have two instances for SystemInit but they are quite different. The one in the module system is quite a bit more complex and the one in my mazinterupt is only two lines. This generates a couple more question unfortunately: Which SystemInit function should I remove and why and how were you able to look at this an come to such a quick and correct conclusion ? Can you teach me how to fish ?

UPDATE: I removed the instance of SystemInit in the Mazinterupt.C file and it builds and works fine. I'd still love to know how you guys can look at that cryptic error message and quickly distill the problem... If you don't mind 

Thanks and yes I do have two instances for SystemInit but they are quite different. The one in the module system is quite a bit more complex and the one in my mazinterupt is only two lines. This generates a couple more question unfortunately: Which SystemInit function should I remove and why and how were you able to look at this an come to such a quick and correct conclusion ? Can you teach me how to fish ?

UPDATE: I removed the instance of SystemInit in the Mazinterupt.C file and it builds and works fine. I'd still love to know how you guys can look at that cryptic error message and quickly distill the problem... If you don't mind