anchor.diff:      done
     '';
   
  -  sha256 = "1q2d24c203vkl6pwk86frmaj6jra49hr9mydq7cnlx4hilqslw3g";
  +  sha256 = "1l27zg5jraa16zm11d3qz1w7m6f1ih3xy5avww454ylm50fw6z11";
   
     meta = {
       description = "Some TrueType fonts from Microsoft Windows Vista (Calibri, Cambria, Candara, Consolas, Constantia, Corbel)";
  
positive.code:     # Set a non-zero priority to allow easy overriding of the
      # fontconfig configuration files.
      priority = 5;
      broken = true; # source url is 404
    };
  }
  
negative.code: fetchzip {
    name = "vista-fonts-1";
  
    url = https://web.archive.org/web/20171225132744/http://download.microsoft.com/download/E/6/7/E675FFFC-2A6D-4AB0-B3EB-27C9F8C8F696/PowerPointViewer.exe;
  
    postFetch = ''
      ${cabextract}/bin/cabextract --lowercase --filter ppviewer.cab $downloadedFile
  