anchor.diff:      rm -r "$out"/share
     '';
   
  -  meta = {
  +  meta = with lib; {
       homepage = "http://libthreadar.sourceforge.net/";
       description = "A C++ library that provides several classes to manipulate threads";
       longDescription = ''
  
positive.code:     maintainers = with maintainers; [ izorkin ];
      license = licenses.lgpl3;
      platforms = platforms.unix;
      broken = stdenv.isDarwin; # never built on Hydra https://hydra.nixos.org/job/nixpkgs/trunk/libthreadar.x86_64-darwin
    };
  }
  
negative.code: { lib, stdenv, fetchurl, gcc-unwrapped }:
  
  stdenv.mkDerivation rec {
    version = "1.4.0";
    pname = "libthreadar";
  
    src = fetchurl {
      url = "mirror://sourceforge/libthreadar/${pname}-${version}.tar.gz";
      sha256 = "sha256-LkcVF4AnuslzpIg/S8sGNJQye6iGcQRGqCqAhg8aN5E=";
    };
  
    outputs = [ "out" "dev" ];
  
    buildInputs = [ gcc-unwrapped ];
  
    CXXFLAGS = [ "-std=c++14" ];
  
    configureFlags = [
      "--disable-build-html"
  