darwin purity: polyml

pkgs/development/compilers/polyml/default.nix

@@ -1,4 +1,4 @@
-{stdenv, fetchurl}:
+{stdenv, fetchurl, autoreconfHook}:
 
 let
   version = "5.5.2";
@@ -7,6 +7,12 @@ in
 stdenv.mkDerivation {
   name = "polyml-${version}";
 
+  prePatch = stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace configure.ac --replace stdc++ c++
+  '';
+
+  buildInputs = stdenv.lib.optional stdenv.isDarwin autoreconfHook;
+
   src = fetchurl {
     url = "mirror://sourceforge/polyml/polyml.${version}.tar.gz";
     sha256 = "10m680qdad6bd50bav9xjsgmsxw8yxg55vr7grbg0gvykzl2pzbk";