[Bf-blender-cvs] [690fa2ba86a] blender-v2.93-release: PyAPI: resolve build error with Python 3.10

[Campbell Barton]

Commit: 690fa2ba86a05b3196a8bc4f78df47f3d5da9b51
Author: Campbell Barton
Date:   Mon Aug 9 22:55:41 2021 +1000
Branches: blender-v2.93-release
https://developer.blender.org/rB690fa2ba86a05b3196a8bc4f78df47f3d5da9b51

PyAPI: resolve build error with Python 3.10

Resolves T89931

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M	source/blender/python/mathutils/mathutils.c

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diff --git a/source/blender/python/mathutils/mathutils.c b/source/blender/python/mathutils/mathutils.c
index 3791a6c2d29..ad65b23ba3d 100644
--- a/source/blender/python/mathutils/mathutils.c
+++ b/source/blender/python/mathutils/mathutils.c
@@ -95,7 +95,11 @@ Py_hash_t mathutils_array_hash(const float *array, size_t array_len)
   x = 0x345678UL;
   i = 0;
   while (--len >= 0) {
+#if PY_VERSION_HEX >= 0x30a0000 /* Version: 3.10. */
+    y = _Py_HashDouble(NULL, (double)(array[i++]));
+#else
     y = _Py_HashDouble((double)(array[i++]));
+#endif
     if (y == -1) {
       return -1;
     }