Instead of looking up static libraries by hand in `$CUDA_PATH/lib{64,}` (which does not work with
the split CUDA redistributables), link them like any other library, so that the compiler wrapper
finds them in the (nix) `buildInputs`.

--- a/install/cupy_builder/cupy_setup_build.py
+++ b/install/cupy_builder/cupy_setup_build.py
@@ -423,10 +423,7 @@

         s = copy.deepcopy(settings)
         if not no_cuda:
-            s['libraries'] = module.libraries
-            s['extra_objects'] = [
-                _find_static_library(name) for name in module.static_libraries
-            ]
+            s['libraries'] = module.static_libraries + module.libraries

         compile_args = s.setdefault('extra_compile_args', [])
         link_args = s.setdefault('extra_link_args', [])