Adding fish (blowfish over irc) for irssi.

pkgs/applications/networking/irc/irssi/fish/default.nix

@@ -0,0 +1,31 @@
+{ stdenv, fetchurl, irssi, gmp, automake, autoconf, libtool, openssl, glib, pkgconfig }:
+
+stdenv.mkDerivation rec {
+  name = "fish-irssi-20130413-e98156bebd";
+  
+  src = fetchurl {
+    url = https://github.com/falsovsky/FiSH-irssi/tarball/e98156bebd;
+    name = "${name}.tar.gz";
+    sha256 = "1ndr51qrg66h1mfzacwzl1vd6lj39pdc4p4z5iihrj4r2f6gk11a";
+  };
+
+  preConfigure = ''
+    tar xf ${irssi.src}
+    configureFlags="$configureFlags --with-irssi-source=`pwd`/${irssi.name}"
+
+    ./regen.sh
+  '';
+
+  installPhase = ''
+    ensureDir $out/lib/irssi/modules
+    cp src/.libs/libfish.so $out/lib/irssi/modules
+  '';
+  
+  buildInputs = [ gmp automake autoconf libtool openssl glib pkgconfig ];
+  
+  meta = {
+    homepage = https://github.com/falsovsky/FiSH-irssi;
+    license = "unfree"; # I can't find any mention of license
+    maintainers = with stdenv.lib.maintainers; [viric];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7304,6 +7304,8 @@ let
 
   irssi = callPackage ../applications/networking/irc/irssi { };
 
+  irssi_fish = callPackage ../applications/networking/irc/irssi/fish { };
+
   bip = callPackage ../applications/networking/irc/bip { };
 
   jack_capture = callPackage ../applications/audio/jack-capture { };