anchor.diff:      optionals
       platforms;
   
  -  version = "4.21";
  +  version = "4.23";
   
     baseUrls = [
       "https://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v${version}/src"
  
positive.code: 
    src = fetchurl {
      urls = map (n: "${n}/nspr-${version}.tar.gz") baseUrls;
      hashOutput = false;
      sha256 = "15ea32c7b100217b6e3193bc03e77f485d9bf7504051443ba9ce86d1c17c6b5a";
    };
  
    prePatch = ''
  
negative.code:     "--enable-64bit"
    ];
  
    postInstall = ''
      mkdir -p "$dev"/bin2
      mv -v "$dev"/bin/*-config "$dev"/bin2
      rm -rv "$dev"/bin
      mv -v "$dev"/bin2 "$dev"/bin
  
      mkdir -p "$lib"/lib
      mv "$dev"/lib*/*.so* "$lib"/lib
      ln -sv "$lib"/lib/* "$dev"/lib
    '';
  
    outputs = [
      "dev"
      "lib"
    ];
  
    passthru = {
      srcVerification = fetchurl {
  