Fix lib.h falling back to TARGET_LINUX during wasm_module and c module compilation

targets/wasm-module/tacle-kernel-countnegative.cpp

@@ -16,8 +16,10 @@ EXPORT("wasm_module") int wasm_module(void) {
 
   int ret = countnegative_return();
   if (ret == 0) {
+    PRINT("result correct.\n");
     fail_marker_positive();
   } else {
+    PRINT("result incorrect.\n");
     fail_marker_negative();
   }
   return ret;