tinc_pre: Add derivation

The tinc developer has made significant developments to the next version
of tinc including many protocol security fixes. This patch adds the
prerelease of the next major tinc release.

pkgs/tools/networking/tinc/pre.nix

@@ -0,0 +1,33 @@
+{ stdenv, fetchgit, autoreconfHook, texinfo, ncurses, readline, zlib, lzo, openssl }:
+
+stdenv.mkDerivation rec {
+  version = "1.1pre78bf82c";
+  name = "tinc-${version}";
+
+  src = fetchgit {
+    url = "git://tinc-vpn.org/tinc";
+    rev = "78bf82cf332327889f0f61388b73053850d8e59b";
+    sha256 = "0azjy78qrzpk16b5jm08kx01ln2j9q0q69g86ah60fms525w1xjk";
+  };
+
+  buildInputs = [ autoreconfHook texinfo ncurses readline zlib lzo openssl ];
+
+  configureFlags = [
+    "--sysconfdir=/etc"
+    "--localstatedir=/var"
+  ];
+
+  meta = with stdenv.lib; {
+    description = "VPN daemon with full mesh routing";
+    longDescription = ''
+      tinc is a Virtual Private Network (VPN) daemon that uses tunnelling and
+      encryption to create a secure private network between hosts on the
+      Internet.  It features full mesh routing, as well as encryption,
+      authentication, compression and ethernet bridging.
+    '';
+    homepage="http://www.tinc-vpn.org/";
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ wkennington ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -2260,6 +2260,8 @@ let
 
   tinc = callPackage ../tools/networking/tinc { };
 
+  tinc_pre = callPackage ../tools/networking/tinc/pre.nix { };
+
   tiny8086 = callPackage ../applications/virtualization/8086tiny { };
 
   tmpwatch = callPackage ../tools/misc/tmpwatch  { };