newer version of tcc almost working

05/tcc-0.9.27/tests/pp/14.c

@@ -0,0 +1,13 @@
+#define W Z
+#define Z(X) W(X,2)
+#define Y(X) Z(X)
+#define X Y
+return X(X(1));
+
+#define P Q
+#define Q(n) P(n,2)
+return P(1);
+
+#define A (B * B)
+#define B (A + A)
+return A + B;