diff --git a/pkgs/development/tools/misc/pkgconfig/pkgconfig-0.20.nix b/pkgs/development/tools/misc/pkgconfig/pkgconfig-0.20.nix
new file mode 100644
index 00000000000..e8ecc09d96f
--- /dev/null
+++ b/pkgs/development/tools/misc/pkgconfig/pkgconfig-0.20.nix
@@ -0,0 +1,11 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "pkgconfig-0.20";
+  builder = ./builder.sh;
+  setupHook = ./setup-hook.sh;
+  src = fetchurl {
+    url = http://pkgconfig.freedesktop.org/releases/pkg-config-0.20.tar.gz;
+    md5 = "fb42402593e4198bc252ab248dd4158b";
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f3d5f407916..451276cb61d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -453,6 +453,11 @@ rec {
     m4 = gnum4;
   };
 
+  libtool_latest = (import ../development/tools/misc/libtool/libtool-1.5.22.nix) {
+    inherit fetchurl stdenv perl;
+    m4 = gnum4;
+  };
+
   pkgconfig = (import ../development/tools/misc/pkgconfig) {
     inherit fetchurl stdenv;
   };
@@ -461,6 +466,10 @@ rec {
     inherit fetchurl stdenv;
   };
 
+  pkgconfig_latest = (import ../development/tools/misc/pkgconfig/pkgconfig-0.20.nix) {
+    inherit fetchurl stdenv;
+  };
+
   strace = (import ../development/tools/misc/strace) {
     inherit fetchurl stdenv;
   };