1#include <stdio.h> 2#include "define3.h" 3#include "define4.h" 4 5extern void function1(void); 6extern void function2(void); 7extern void function3(void); 8extern void function4(void); 9 10int main(int argc, char *argv[]) 11{ 12 printf("Hello from program.c\n"); 13 function1(); 14 function2(); 15 printf("%s", STRING3); 16 printf("%s", STRING4); 17 return 0; 18} 19