fix: #58

packages/hxtorch/include-SparseTensorUtils.patch

+diff --git a/src/hxtorch/spiking/types.cpp b/src/hxtorch/spiking/types.cpp
+index aaf670f..39322c8 100644
+--- a/src/hxtorch/spiking/types.cpp
++++ b/src/hxtorch/spiking/types.cpp
+@@ -2,7 +2,12 @@
+ #include "grenade/vx/common/time.h"
+ #include "hxtorch/spiking/detail/to_dense.h"
+ #include <ATen/Functions.h>
++#if __has_include(<ATen/native/SparseTensorUtils.h>
++// moved in py-torch@2.1
++#include <ATen/native/SparseTensorUtils.h>
++#else
+ #include <ATen/SparseTensorUtils.h>
++#endif
+ #include <log4cxx/logger.h>
+ 
+ namespace hxtorch::spiking {

packages/hxtorch/package.py

@@ -85,6 +85,8 @@ class Hxtorch(build_brainscales.BuildBrainscales):
     for dep, dep_kw in deps_hxtorch_core:
         depends_on(dep, **dep_kw)
 
+    patch("include-SparseTensorUtils.patch", when="@:8.0-a5 ^py-torch@2.1:")
+
     extends('python')
 
     def install_test(self):