cleanup flake

src/renderer.cpp

@@ -1,7 +1,6 @@
 #include "renderer.hpp"
 
 #include <algorithm>
-#include <cstring>
 #include <format>
 #include <raylib.h>
 #include <raymath.h>
@@ -12,6 +11,10 @@
 #include "klotski.hpp"
 #include "mass_springs.hpp"
 
+#ifdef BATCHING
+#include <cstring>
+#endif
+
 auto OrbitCamera3D::Update(const Mass &current_mass) -> void {
   Vector2 mouse = GetMousePosition();
   if (mouse.x >= GetScreenWidth() / 2.0 && mouse.y >= MENU_HEIGHT) {