how to link all .c extension header files to project folder like blinky project??

Hi all,

I am trying to build a code in ccs but the issue is there an error that pops up everytime i build the project.

i included the .h header files in properties of project.the code is compiled successfully if i dont write anything in main code.

for example:

#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "driverlib/gpio.h"
#include "driverlib/sysctl.h"
int main(void) {

return 0;
}

however every time i write a function in the main code there's an error

for example:

#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "driverlib/gpio.h"
#include "driverlib/sysctl.h"
int main(void) {
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF)
return 0;
}

i think i didnt link the .c extension headers in project.

i checked the blinky project which didnt had any .c header added,but still it compiles successfully.

PLease suggest how to link all.c files like .h files??