https://bugs.gentoo.org/971287
--- a/pcsx2/GS/Renderers/Common/GSDirtyRect.cpp
+++ b/pcsx2/GS/Renderers/Common/GSDirtyRect.cpp
@@ -3,4 +3,5 @@
 
 #include "GSDirtyRect.h"
+#include <climits>
 #include <vector>
 
--- a/pcsx2/GS/Renderers/Common/GSFastList.h
+++ b/pcsx2/GS/Renderers/Common/GSFastList.h
@@ -5,4 +5,5 @@
 
 #include "common/AlignedMalloc.h"
+#include <climits>
 
 template <class T>