ref: c5134537d2d2b0a7b7b2e9a08e5255c4b881cdbb dir: /tests/cc/execute/0149-define.c/
#define M(x) x #define A(a,b) a(b) int main(void) { char *a = A(M,"hi"); return (a[1] == 'i') ? 0 : 1; }