anchor.diff:      ftp://ftp.ru.debian.org/debian/
       ftp://ftp.debian.org/debian/
       http://archive.debian.org/debian-archive/debian/
  +    ftp://ftp.funet.fi/pub/mirrors/ftp.debian.org/debian/
     ];
   
     # Ubuntu.
  
positive.code:     ftp://mirror.cict.fr/gnu/
      ftp://ftp.cs.tu-berlin.de/pub/gnu/
      ftp://ftp.chg.ru/pub/gnu/
    ];
  
    # GCC.
  
negative.code:     http://mirror.cc.columbia.edu/pub/software/apache/
      http://www.apache.org/dist/
      http://archive.apache.org/dist/ # fallback for old releases
      ftp://ftp.funet.fi/pub/mirrors/apache.org/
    ];
  
    postgresql = [
  