anchor.diff:  
       license = "GPLv3+";
   
  -    platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.cygwin;
  -    maintainers = [ stdenv.lib.maintainers.ludo ];
  +    platforms = with platforms; linux ++ cygwin;
  +    maintainers = with maintainers; [ ludo pierron ];
     };
   }
  
positive.code:   # TODO: Investigate & fix the test failures.
    doCheck = false;
  
    meta = {
      description = "GDB, the GNU Project debugger";
  
      longDescription = ''
  
negative.code: { fetchurl, fetchgit, stdenv, ncurses, readline, gmp, mpfr, expat, texinfo
  , dejagnu, python, target ? null
  
  # Set it to true to fetch the latest release/branchpoint from git.
  , bleedingEdgeVersion ? false
  
  # needed for the git version
  , flex, bison }:
  
  let
      basename =
        if bleedingEdgeVersion
        then "gdb-7.3.20110726"
        else "gdb-7.3";
  in
  
  stdenv.mkDerivation rec {
    name = basename + stdenv.lib.optionalString (target != null)
        ("-" + target.config);
  
    src =
      if bleedingEdgeVersion
      then fetchgit {
          url = "git://sourceware.org/git/gdb.git";
          rev = "refs/tags/gdb_7_3-2011-07-26-release";
        }
      else fetchurl {
          url = "mirror://gnu/gdb/${basename}.tar.bz2";
          # md5 is provided by the annoucement page
          # http://www.gnu.org/s/gdb/download/ANNOUNCEMENT
          md5 = "485022b8df7ba2221f217e128f479fe7";
        };
  
    # I think python is not a native input, but I leave it
    # here while I will not need it cross building
    buildNativeInputs = [ texinfo python ]
    ++ stdenv.lib.optionals bleedingEdgeVersion [ flex bison ];
  
    buildInputs = [ ncurses readline gmp mpfr expat ]
      ++ stdenv.lib.optional doCheck dejagnu;
  
  