cc65_test.c

#include <stdio.h>

void somefunc1();
void somefunc2(void);
void somefunc3();
void somefunc4(void);

int main() {
    somefunc1();
    somefunc2();
    somefunc3();
    somefunc4();
    return 0;
}

void somefunc1() {
    printf("somefunc1\n");
}

void somefunc2() {
    printf("somefunc2\n");
}

void somefunc3(void) {
    printf("somefunc3\n");
}

void somefunc4(void) {
    printf("somefunc4\n");
}