oh wait, I did fix the forward declaration

libstarlight/source/starlight/_incLib/json_fwd.hpp

@@ -1,3 +1,36 @@
-// okay, 2.1.x broke the forward declaration so here's a redirect until it gets proper fwd
 #pragma once
-#include "json.hpp"
+
+#ifndef NLOHMANN_JSON_FWD_HPP
+#define NLOHMANN_JSON_FWD_HPP
+
+#include <cstdint>
+#include <map>
+#include <vector>
+#include <string>
+#include <type_traits>
+
+namespace nlohmann
+{
+
+template <
+    template<typename U, typename V, typename... Args> class ObjectType,
+    template<typename U, typename... Args> class ArrayType,
+    class StringType,
+    class BooleanType,
+    class NumberIntegerType,
+    class NumberUnsignedType,
+    class NumberFloatType,
+    template<typename U> class AllocatorType,
+    template<typename T, typename SFINAE = void> class JSONSerializer
+    >
+class basic_json;
+
+template<typename, typename>
+struct adl_serializer;
+
+using json = basic_json<std::map,std::vector,std::string,bool,std::int64_t,
+                        std::uint64_t,double,std::allocator,adl_serializer>;
+
+} // namespace nlohmann
+
+#endif // NLOHMANN_JSON_FWD_HPP

libstarlight/source/starlight/_incLib/json_fwd.hpp.broken

@@ -1,35 +0,0 @@
-#pragma once
-
-#ifndef NLOHMANN_JSON_FWD_HPP
-#define NLOHMANN_JSON_FWD_HPP
-
-#include <cstdint>
-#include <map>
-#include <vector>
-#include <string>
-
-namespace nlohmann
-{
-
-template <
-    template<typename U, typename V, typename... Args> class ObjectType,
-    template<typename U, typename... Args> class ArrayType,
-    class StringType,
-    class BooleanType,
-    class NumberIntegerType,
-    class NumberUnsignedType,
-    class NumberFloatType,
-    template<typename U> class AllocatorType,
-    template<typename T, typename SFINAE = void> class JSONSerializer
-    >
-class basic_json;
-
-template<typename = void, typename = void>
-struct adl_serializer;
-
-using json = basic_json<std::map,std::vector,std::string,bool,std::int64_t,
-                        std::uint64_t,double,std::allocator,adl_serializer>;
-
-} // namespace nlohmann
-
-#endif // NLOHMANN_JSON_FWD_HPP