{lib, stdenv, fetchurl, ocaml, findlib, easy-format}: let pname = "biniou"; version = "1.0.9"; webpage = "http://mjambon.com/${pname}.html"; in assert lib.versionAtLeast (lib.getVersion ocaml) "3.11"; stdenv.mkDerivation rec { name = "${pname}-${version}"; src = fetchurl { url = "http://mjambon.com/releases/${pname}/${name}.tar.gz"; sha256 = "14j3hrhbjqxbizr1pr8fcig9dmfzhbjjwzwyc99fcsdic67w8izb"; }; buildInputs = [ ocaml findlib easy-format ]; createFindlibDestdir = true; makeFlags = [ "PREFIX=$(out)" ]; preBuild = '' mkdir $out/bin ''; meta = with lib; { description = "A binary data format designed for speed, safety, ease of use and backward compatibility as protocols evolve"; homepage = webpage; license = licenses.bsd3; maintainers = [ maintainers.vbgl ]; platforms = ocaml.meta.platforms or []; }; }