initial commit, 4.5 stable

thirdparty/misc/patches/FastNoiseLite-0001-namespace-warnings.patch

@@ -0,0 +1,43 @@
+diff --git a/thirdparty/misc/FastNoiseLite.h b/thirdparty/misc/FastNoiseLite.h
+index ed97b0fcac..fb6dbcb92a 100644
+--- a/thirdparty/misc/FastNoiseLite.h
++++ b/thirdparty/misc/FastNoiseLite.h
+@@ -52,6 +52,8 @@
+ 
+ #include <cmath>
+ 
++namespace fastnoiselite {
++
+ class FastNoiseLite
+ {
+ public:
+@@ -1609,6 +1611,12 @@ private:
+         }
+     }
+ 
++// GCC raises warnings when integer overflows occur, which are needed for hashing here.
++#if defined(__GNUC__) && !defined(__clang__)
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Waggressive-loop-optimizations"
++#endif
++
+     template <typename FNfloat>
+     float SingleCellular(int seed, FNfloat x, FNfloat y, FNfloat z) const
+     {
+@@ -1763,6 +1771,9 @@ private:
+         }
+     }
+ 
++#if defined(__GNUC__) && !defined(__clang__)
++#pragma GCC diagnostic pop
++#endif
+ 
+     // Perlin Noise
+ 
+@@ -2583,4 +2594,6 @@ const T FastNoiseLite::Lookup<T>::RandVecs3D[] =
+     -0.7870349638f, 0.03447489231f, 0.6159443543f, 0, -0.2015596421f, 0.6859872284f, 0.6991389226f, 0, -0.08581082512f, -0.10920836f, -0.9903080513f, 0, 0.5532693395f, 0.7325250401f, -0.396610771f, 0, -0.1842489331f, -0.9777375055f, -0.1004076743f, 0, 0.0775473789f, -0.9111505856f, 0.4047110257f, 0, 0.1399838409f, 0.7601631212f, -0.6344734459f, 0, 0.4484419361f, -0.845289248f, 0.2904925424f, 0
+ };
+ 
++} // namespace fastnoiselite
++
+ #endif