anchor.diff:      optionalString
       platforms;
   
  -  version = "1.7.0";
  +  version = "1.8.0";
   in
   stdenv.mkDerivation rec {
     name = "openh264-${version}";
  
positive.code: { stdenv
  , fetchFromGitHub
  , fetchurl
  , lib
  
  , nasm
  
negative.code:     owner = "cisco";
      repo = "openh264";
      rev = "v${version}";
      sha256 = "16f07de5e382c67d6f672b4a4a1837fdc97d4517dd3905693d8d4d9b166753c1";
    };
  
    nativeBuildInputs = [
  