{ stdenvNoCC }: # Darwin dynamically determines the `libSystem` to use based on the SDK found at `DEVELOPER_DIR`. # By default, this will be `apple-sdk` or one of the versioned variants. stdenvNoCC.mkDerivation { pname = "libSystem"; version = "B"; # Silence linker warnings due a missing `lib` (which is added by cc-wrapper). buildCommand = '' mkdir -p "$out/include" "$out/lib" ''; }