anchor.diff:  { stdenv
   , fetchurl
   
  -, cairo
   , cairomm
   , glibmm
   , libpng
  
positive.code:       codyopel
      ];
      platforms = with platforms;
        i686-linux
        ++ x86_64-linux;
    };
  }
  
negative.code:   ];
  
    configureFlags = [
      "--disable-maintainer-mode"
      "--disable-deprecated-api"
      "--disable-documentation"
      "--enable-warnings"
      "--without-libstdc-doc"
      "--without-libsigc-doc"
      "--without-glibmm-doc"
  