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diff --git a/thirdparty/vhacd/inc/btMinMax.h b/thirdparty/vhacd/inc/btMinMax.h
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+++ b/thirdparty/vhacd/inc/btMinMax.h
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+/*
+Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_GEN_MINMAX_H
+#define BT_GEN_MINMAX_H
+
+#include "btScalar.h"
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+template <class T>
+SIMD_FORCE_INLINE const T& btMin(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+template <class T>
+SIMD_FORCE_INLINE const T& btMax(const T& a, const T& b)
+{
+    return a > b ? a : b;
+}
+
+template <class T>
+SIMD_FORCE_INLINE const T& btClamped(const T& a, const T& lb, const T& ub)
+{
+    return a < lb ? lb : (ub < a ? ub : a);
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btSetMin(T& a, const T& b)
+{
+    if (b < a) {
+        a = b;
+    }
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btSetMax(T& a, const T& b)
+{
+    if (a < b) {
+        a = b;
+    }
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btClamp(T& a, const T& lb, const T& ub)
+{
+    if (a < lb) {
+        a = lb;
+    }
+    else if (ub < a) {
+        a = ub;
+    }
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_GEN_MINMAX_H