anchor.diff: -{ stdenv, fetchurl, fixDarwinDylibNames }:
  +{ stdenv, fetchurl }:
   
   let
     pname = "icu4c";
  
positive.code:   '';
  
    configureFlags = "--disable-debug" +
      stdenv.lib.optionalString (stdenv.isFreeBSD || stdenv.isDarwin) " --enable-rpath";
  
    # remove dependency on bootstrap-tools in early stdenv build
    postInstall = stdenv.lib.optionalString stdenv.isDarwin ''
      sed -i 's/INSTALL_CMD=.*install/INSTALL_CMD=install/' $out/lib/icu/${version}/pkgdata.inc
    '';
  
    enableParallelBuilding = true;
  
    meta = with stdenv.lib; {
      description = "Unicode and globalization support library";
  
negative.code:     sha256 = "05j86714qaj0lvhvyr2s1xncw6sk0h2dcghb3iiwykbkbh8fjr1s";
    };
  
    postUnpack = ''
      sourceRoot=''${sourceRoot}/source
      echo Source root reset to ''${sourceRoot}
  