{stdenv, fetchurl}:
stdenv.mkDerivation {
name = "unzip-5.50";
builder = ./builder.sh;
src = fetchurl {
url = http://catamaran.labs.cs.uu.nl/dist/tarballs/unzip550.tar.gz;
md5 = "798592d62e37f92571184236947122ed";
};
}