undefined reference to......

i want to set up the engine “ZEngine” that i found in the internet but i think i made somthing false because it comes every time the error undefined reference to …
i use codeblocks with gcc compiler

You are missing to link with some library. I can’t be more specific because you did not post the complete error message from the linker, the name of the symbol you have an undefined reference to can often give a good hint which library it should come from.
Also http://zengine.sourceforge.net/ says it’s not being developed for over 7 years…