To set options for build options for a project (main project or subproject), select the Build tool node on the project tree to display the Property panel.
Select the component tabs, and set build options by setting the necessary properties.
Compile phase: [Compile Options] tab
Assemble phase: [Assemble Options] tab
Link phase (For the application project): [Link Options] tab
Hex output phase: [Hex Output Options] tab
Link phase (For the library project): [Librarian Options] tab
Library Generate phase: [Library Generate Options] tab