ref: c94189d775d2a3a39d22090deb8a51580bf0d45b 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; }