- Incremental Builds
To incrementally build all open projects, you can select Project> Build All or type CTRL+B.
- Build Individual Projects
To build individual projects click Project > Build Project.
- Rebuild Projects
To rebuild a project right click on the project and select Rebuild Project.
Note: This will rebuild projects that this project references as well, but will not rebuild projects that references this one.
- Build Automatically
This performs a Build All whenever any project file is saved, such as your makefile.
Tip: For C/C++ projects, this feature should be turned off. If there is a checkmark beside Build Automatically the feature is on. To turn it off, select Build Automatically.

Have a nice day,

Jun Zhang