{ stdenv, fetchurl }: stdenv.mkDerivation { name = "haproxy-1.4.20"; src = fetchurl { url = http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.20.tar.gz; sha256 = "0gi81dg8k3ypljs7ifbppvpfrwrnbafjv41fjpwnyqfwbxa4j2gh"; }; buildInputs = []; preConfigure = '' export makeFlags="TARGET=linux26 PREFIX=$out" ''; meta = { description = "HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications."; homepage = http://haproxy.1wt.eu/; }; }