{stdenv, fetchurl}:
stdenv.mkDerivation {
name = "pcre-6.6";
src = fetchurl {
url = ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-6.6.tar.bz2;
md5 = "61067f730c46cf6bdd0f8efe3f4f51b6";
};
}