Я фигею, дорогая редакция!

[xxxx@katar temp]$ cat 1.c
void bar()
{
        printf("bar 1\n");
}

void foo1(void)
{
        bar();
}
[xxxx@katar temp]$ cat 2.c
bar()
{
        printf("bar 2\n");
}

void foo2(void)
{
        bar();
}
[xxxx@katar temp]$ cat 3.c
int main()
{
        foo1();
        foo2();
        return 0;
}
[xxxx@katar temp]$ gcc -o 3 3.c 1.c 2.c
[xxxx@katar temp]$ ls -al 3
-rwxrwxr-x    1 xxxx     xxxx        89182 ??? 18 12:32 3
[xxxx@katar temp]$ ld -v
GNU ld version 2.9-gnupro-98r2 (with BFD 2.9-gnupro-98r2)
[xxxx@katar temp]$ gcc -v
Reading specs from ../2.9-gnupro-98r2/specs
gcc version 2.9-gnupro-98r2
[xxxx@katar temp]