* update blender to 17:3.1.2-2

blender/force-draco1.patch

@@ -0,0 +1,15 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 75f5795db68..d50686adfb0 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -754,10 +754,6 @@ endif()
+ set_and_warn_dependency(WITH_PYTHON WITH_CYCLES        OFF)
+ set_and_warn_dependency(WITH_PYTHON WITH_DRACO         OFF)
+ 
+-if(WITH_DRACO AND NOT WITH_PYTHON_INSTALL)
+-  message(STATUS "WITH_DRACO requires WITH_PYTHON_INSTALL to be ON, disabling WITH_DRACO for now")
+-  set(WITH_DRACO OFF)
+-endif()
+ 
+ # enable boost for cycles, audaspace or i18n
+ # otherwise if the user disabled

blender/force-draco2.patch

@@ -0,0 +1,21 @@
+diff --git a/io_scene_gltf2/io/com/gltf2_io_draco_compression_extension.py b/io_scene_gltf2/io/com/gltf2_io_draco_compression_extension.py
+index e7518ac4..c0d78564 100644
+--- a/io_scene_gltf2/io/com/gltf2_io_draco_compression_extension.py
++++ b/io_scene_gltf2/io/com/gltf2_io_draco_compression_extension.py
+@@ -13,6 +13,7 @@
+ # limitations under the License.
+ 
+ import os
++import site
+ import sys
+ from pathlib import Path
+ import bpy
+@@ -30,7 +31,7 @@ def dll_path() -> Path:
+     python_lib = Path('{v[0]}.{v[1]}/python/lib'.format(v=bpy.app.version))
+     python_version = 'python{v[0]}.{v[1]}'.format(v=sys.version_info)
+ 
+-    path = os.environ.get('BLENDER_EXTERN_DRACO_LIBRARY_PATH')
++    path = site.getsitepackages()[0]
+     if path is None:
+         path = {
+             'win32': blender_root / python_lib / 'site-packages',