uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/libraries/science/math/libtorch/prefetch.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p nix-prefetch-scripts
+
+set -eou pipefail
+
+version=$1
+
+bucket="https://download.pytorch.org/libtorch"
+CUDA_VERSION=cu113
+
+url_and_key_list=(
+  "x86_64-darwin-cpu $bucket/cpu/libtorch-macos-${version}.zip libtorch-macos-${version}.zip"
+  "x86_64-linux-cpu $bucket/cpu/libtorch-cxx11-abi-shared-with-deps-${version}%2Bcpu.zip libtorch-cxx11-abi-shared-with-deps-${version}-cpu.zip"
+  "x86_64-linux-cuda $bucket/${CUDA_VERSION}/libtorch-cxx11-abi-shared-with-deps-${version}%2B${CUDA_VERSION}.zip libtorch-cxx11-abi-shared-with-deps-${version}-${CUDA_VERSION}.zip"
+)
+
+hashfile="binary-hashes-$version.nix"
+echo "  \"$version\" = {" >> $hashfile
+
+for url_and_key in "${url_and_key_list[@]}"; do
+  key=$(echo "$url_and_key" | cut -d' ' -f1)
+  url=$(echo "$url_and_key" | cut -d' ' -f2)
+  name=$(echo "$url_and_key" | cut -d' ' -f3)
+
+  echo "prefetching ${url}..."
+  hash=$(nix hash to-sri --type sha256 $(nix-prefetch-url --unpack "$url" --name "$name"))
+
+  echo "    $key = {" >> $hashfile
+  echo "      name = \"$name\";" >> $hashfile
+  echo "      url = \"$url\";" >> $hashfile
+  echo "      hash = \"$hash\";" >> $hashfile
+  echo "    };" >> $hashfile
+
+  echo
+done
+
+echo "  };" >> $hashfile
+echo "done."