ref: ae8167e3913f12644ac71c6a0d9e6b9376b2ad37 dir: /tests/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; }