diff --git a/build.py b/build.py
index 5d582ffd..d0ba7016 100644
--- a/build.py
+++ b/build.py
@@ -64,7 +64,7 @@ def main(compile_non_matching, use_ninja, clean_ninja, link):
 
     isNotWindows = os.name != "nt"
 
-    flags = "-c -Cpp_exceptions off -nodefaults -proc gekko -fp hard -lang=c++ -ipa file -inline auto,level=2 -O4,s -rtti off -sdata 4 -sdata2 4 -align powerpc -enum int -msgstyle gcc "
+    flags = "-c -Cpp_exceptions off -maxerrors 1 -nodefaults -proc gekko -fp hard -lang=c++ -ipa file -inline auto,level=2 -O4,s -rtti off -sdata 4 -sdata2 4 -align powerpc -enum int -msgstyle gcc "
     includes = "-i . -I- -i include "
 
     default_compiler_path = pathlib.Path("GC/3.0a3/")
diff --git a/include/Game/LiveActor/ShadowController.hpp b/include/Game/LiveActor/ShadowController.hpp
index 46d2fd60..8ad1680c 100644
--- a/include/Game/LiveActor/ShadowController.hpp
+++ b/include/Game/LiveActor/ShadowController.hpp
@@ -4,6 +4,7 @@
 #include "Game/LiveActor/LiveActor.hpp"
 #include "Game/Scene/SceneObjHolder.hpp"
 #include "Game/Util.hpp"
+#include "Game/Util/Array.hpp"
 
 class CollisionPartsFilterBase;
 class ShadowDrawer;
diff --git a/include/Game/Util/ActorStateUtil.hpp b/include/Game/Util/ActorStateUtil.hpp
index b2573e90..95435e33 100644
--- a/include/Game/Util/ActorStateUtil.hpp
+++ b/include/Game/Util/ActorStateUtil.hpp
@@ -1,7 +1,8 @@
 #pragma once
 
-class LiveActor;
-class ActorStateBaseInterface;
+#include "Game/LiveActor/LiveActor.hpp"
+#include "Game/LiveActor/ActorStateBase.hpp"
+
 class Nerve;
 
 namespace MR {