anchor.diff:    src = fetchurl {
       urls = map (n: "${n}/nspr-${version}.tar.gz") baseUrls;
       hashOutput = false;
  -    sha256 = "27dde06bc3d0c88903a20d6ad807361a912cfb624ca0ab4efb10fc50b19e2d80";
  +    sha256 = "9b3102d97665504aeee73363c11a21c062ad67a2522242368b7f019f96a53cd1";
     };
   
     prePatch = ''
  
positive.code:     };
    };
  
    meta = with stdenv.lib; {
      homepage = http://www.mozilla.org/projects/nspr/;
      description = "Netscape Portable Runtime, a platform-neutral API for system-level and libc-like functions";
      maintainers = with maintainers; [
  
negative.code: { stdenv
  , fetchurl
  , lib
  }:
  
  let
    inherit (lib)
      elem
      optionals
      platforms;
  
    version = "4.16";
  
    baseUrls = [
      "https://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v${version}/src"
  