ref: 1e1f75a7e9d7df35f4999c0ad3913ed61a92678b dir: /tests/execute/0154-if-defined/
#if defined(FOO) int a; #elif !defined(FOO) && defined(BAR) int b; #elif !defined(FOO) && !defined(BAR) int c; #else int d; #endif int main(void) { return c; }