hi,
This is the first time I work in a big C project. All source code files are located in say directory /source/pp and all header files are in /include/pp. I've created a link to both of these directories from my home dir, say /home/ss. So in the /home/ss dir I have the /source/pp and /include/pp directories which are really links. Now, I want to modify one of the C files in /source/pp. I can't do it directly from the /source/pp directory...that's why i created the links to these folders. I created another directory in /home/ss from which I could work in. My question is, how can I get a file from the /source/pp directory, modify it and link it to all the other c files and header files?

Instead of making symbolic links to the directories, how about making symbolic links to the files? When you need to modify a file, delete the link and make it real copy instead.