1 files changed, 14 insertions, 19 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/zarith/default.nix b/nixpkgs/pkgs/development/ocaml-modules/zarith/default.nix
index bddf2a2448fd..eed6b158d4a6 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/zarith/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/zarith/default.nix
@@ -1,31 +1,26 @@
-{ lib, stdenv, fetchurl
-, ocaml, findlib, pkg-config, perl
+{ lib, stdenv, fetchFromGitHub
+, ocaml, findlib, pkg-config
 , gmp
 }:
 
-let source =
-  if lib.versionAtLeast ocaml.version "4.02"
-  then {
-    version = "1.11";
-    url = "https://github.com/ocaml/Zarith/archive/release-1.11.tar.gz";
-    sha256 = "111n33flg4aq5xp5jfksqm4yyz6mzxx9ps9a4yl0dz8h189az5pr";
-  } else {
-    version = "1.3";
-    url = "http://forge.ocamlcore.org/frs/download.php/1471/zarith-1.3.tgz";
-    sha256 = "1mx3nxcn5h33qhx4gbg0hgvvydwlwdvdhqcnvfwnmf9jy3b8frll";
-  };
-in
+if !lib.versionAtLeast ocaml.version "4.04"
+then throw "zarith is not available for OCaml ${ocaml.version}"
+else
 
 stdenv.mkDerivation rec {
-  name = "ocaml${ocaml.version}-zarith-${version}";
-  inherit (source) version;
-  src = fetchurl { inherit (source) url sha256; };
+  pname = "ocaml${ocaml.version}-zarith";
+  version = "1.12";
+  src = fetchFromGitHub {
+    owner = "ocaml";
+    repo = "Zarith";
+    rev = "release-${version}";
+    sha256 = "1jslm1rv1j0ya818yh23wf3bb6hz7qqj9pn5fwl45y9mqyqa01s9";
+  };
 
   nativeBuildInputs = [ pkg-config ];
-  buildInputs = [ ocaml findlib perl ];
+  buildInputs = [ ocaml findlib ];
   propagatedBuildInputs = [ gmp ];
 
-  patchPhase = "patchShebangs ./z_pp.pl";
   dontAddPrefix = true;
   configureFlags = [ "-installdir ${placeholder "out"}/lib/ocaml/${ocaml.version}/site-lib" ];