{ stdenv, fetchurl, ocaml, findlib, pkgconfig, gmp, perl }: let ocaml_version = (builtins.parseDrvName ocaml.name).version; in assert stdenv.lib.versionAtLeast ocaml_version "3.12.1"; stdenv.mkDerivation rec { name = "zarith-${version}"; version = "1.3"; src = fetchurl { url = http://forge.ocamlcore.org/frs/download.php/1471/zarith-1.3.tgz; sha256 = "1mx3nxcn5h33qhx4gbg0hgvvydwlwdvdhqcnvfwnmf9jy3b8frll"; }; buildInputs = [ ocaml findlib pkgconfig perl ]; propagatedBuildInputs = [ gmp ]; patchPhase = '' substituteInPlace ./z_pp.pl --replace '/usr/bin/perl' '${perl}/bin/perl' ''; configurePhase = '' ./configure -installdir $out/lib/ocaml/${ocaml_version}/site-lib ''; preInstall = "mkdir -p $out/lib/ocaml/${ocaml_version}/site-lib"; meta = with stdenv.lib; { description = "fast, arbitrary precision OCaml integers"; homepage = "http://forge.ocamlcore.org/projects/zarith"; license = licenses.lgpl2; platforms = ocaml.meta.platforms; maintainers = with maintainers; [ thoughtpolice vbgl ]; }; }