Path C complier

To all,
I'm trying to install K3b cd burning software. I'm use Ferdora Core 6 OS. The error it gives is “no C compiler in path.” . How can I find were this “path” is? In DOS it was in the Autoexec.bat file.
In Linux I have no idea. This has come up in the past. I have always found a work around. It has happen to many times now I want to know where the file is and how to change it.

Thanks in advance for any help.