How to show printf's Calltip?

[xw0323]

Hi,
I am using CodeLite 8.0 on Ubuntu trusty. I created a project in this way:
1. Create New Project
2. Select Console->Simple executable(gcc) and click Next
3. Set Project Name to test and click Next
4. Click Finish button

Open the main.c file in src folder and navigate to printf, Codelite refuses to show the Calltip of printf and refuses Goto Declaration as well.

[xw0323]

Solved. Need add /usr/include manually.