diff --git a/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix
new file mode 100644
index 000000000000..6f29c78eca69
--- /dev/null
+++ b/pkgs/data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix
@@ -0,0 +1,33 @@
+{ stdenv, fetchurl, unzip }:
+
+let 
+
+  src = fetchurl {
+    url = http://www.oasis-open.org/docbook/sgml/3.1/docbk31.zip;
+    sha256 = "0f25ch7bywwhdxb1qa0hl28mgq1blqdap3rxzamm585rf4kis9i0";
+  };
+
+  isoents = fetchurl {
+    url = http://www.oasis-open.org/cover/ISOEnts.zip;
+    sha256 = "1clrkaqnvc1ja4lj8blr0rdlphngkcda3snm7b9jzvcn76d3br6w";
+  };
+
+in
+
+stdenv.mkDerivation {
+  name = "docbook-sgml-3.1";
+
+  unpackPhase = "true";
+
+  buildInputs = [ unzip ];
+
+  installPhase =
+    ''
+      o=$out/sgml/dtd/docbook-3.1
+      mkdir -p $o
+      cd $o
+      unzip ${src}
+      unzip ${isoents}
+      sed -e "s/iso-/ISO/" -e "s/.gml//" -i docbook.cat
+    '';
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 604fad0228e2..618b423b1608 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5749,7 +5749,10 @@ let
 
   iproute = callPackage ../os-specific/linux/iproute { };
 
-  iputils = callPackage ../os-specific/linux/iputils { };
+  iputils = callPackage ../os-specific/linux/iputils {
+    sp = spCompat;
+    inherit (perlPackages) SGMLSpm;
+  };
 
   iptables = callPackage ../os-specific/linux/iptables { };
 
@@ -6433,6 +6436,8 @@ let
 
   docbook5 = callPackage ../data/sgml+xml/schemas/docbook-5.0 { };
 
+  docbook_sgml_dtd_31 = callPackage ../data/sgml+xml/schemas/sgml-dtd/docbook/3.1.nix { };
+
   docbook_sgml_dtd_41 = callPackage ../data/sgml+xml/schemas/sgml-dtd/docbook/4.1.nix { };
 
   docbook_xml_dtd_412 = callPackage ../data/sgml+xml/schemas/xml-dtd/docbook/4.1.2.nix { };