ethminer: use regular stdenv when CUDA isn't used

{

  lib,

  stdenv,

  clangStdenv,

  fetchFromGitHub,

  opencl-headers,

  openssl,

  pkg-config,

  cli11

}:

}@args:

# Note that this requires clang < 9.0 to build, and currently

# clangStdenv provides clang 7.1 which satisfies the requirement.

let stdenv = clangStdenv;

let stdenv = if cudaSupport then clangStdenv else args.stdenv;

in stdenv.mkDerivation rec {

  pname = "ethminer";