How do you share files in an Eclipse projects?

solution:

For each project that needs the shared folder of files:

1. Open properties for the project.

2. Select c/c++ project paths.

3. Click add folder...

4. Click create new folder...

5. Click advanced >>

6. Check link to folder in the file system

7. Click browse... or enter the folder name

8. Click ok

9. Click ok

10. Click ok

All of the files in this folder (and sub folders) will be compiled into the project as if they were located in the project's base folder.