anchor.diff:      sha256 = "e9d3e04bc984ec3b14033342f5ebdcd5202d8d8e40128dd737f566945612378f";
     };
     arpack_src = fetchurl {
  -    url = "http://forge.scilab.org/index.php/p/arpack-ng/downloads/353/get/";
  -    name = "arpack-ng-${arpack_ver}.tar.gz";
  -    sha256 = "4add769386e0f6b0484491bcff129c6f5234190dbf58e07cc068fbd5dc7278bf";
  +    url = "http://forge.scilab.org/index.php/p/arpack-ng/downloads/376/get/";
  +    name = "arpack-ng_${arpack_ver}.tar.gz";
  +    sha256 = "65b7856126f06ecbf9ec450d50df92ca9260d4b0d21baf02497554ac230d6feb";
     };
     clp_src = fetchurl {
       url = "http://www.coin-or.org/download/source/Clp/Clp-${clp_ver}.tgz";
  
positive.code: in
  stdenv.mkDerivation rec {
    pname = "julia";
    date = "20120410";
    name = "${pname}-git-${date}";
  
    grisu_ver = "1.1";
    dsfmt_ver = "2.1";
    arpack_ver = "3.0.2";
    clp_ver = "1.14.5";
    lighttpd_ver = "1.4.29";
  
  
negative.code: { stdenv, fetchgit, gfortran, perl, m4, llvm, gmp, pcre, blas, liblapack
   , readline, fftwSinglePrec, fftw, libunwind, suitesparse, glpk, fetchurl
   , ncurses, libunistring, lighttpd, patchelf
   } :
  let
    liblapackShared = liblapack.override{shared=true;};
  