Revert "Revert "Merge pull request #9543 from NixOS/staging.post-15.06""

This reverts commit 741bf840da.

This reverts the fallout from reverting the major changes.

pkgs/misc/jackaudio/jack1.nix

@@ -27,7 +27,8 @@ stdenv.mkDerivation rec {
   '';
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ optAlsaLib optDb optLibuuid optLibffado optCelt ];
+  buildInputs = [ optAlsaLib optDb optLibffado optCelt ];
+  propagatedBuildInputs = [ optLibuuid ];
   
   meta = with stdenv.lib; {
     description = "JACK audio connection kit";

pkgs/misc/urbit/default.nix

@@ -0,0 +1,42 @@
+{ stdenv, fetchgit, gcc, gmp, libsigsegv, openssl, automake, autoconf, ragel,
+  cmake, re2c, libtool, ncurses, perl, zlib, python }:
+
+stdenv.mkDerivation rec {
+
+  name = "urbit-${version}";
+  version = "2015.09.26";
+
+  src = fetchgit {
+    url = "https://github.com/urbit/urbit.git";
+    rev = "c9592664c797b2dd74f26886528656f8a7058640";
+    sha256 = "0sgrxnmpqh54mgar81wlb6gff8c0pc24p53xwxr448g5shvnzjx9";
+  };
+
+  buildInputs = with stdenv.lib; [
+    gcc gmp libsigsegv openssl automake autoconf ragel cmake re2c libtool
+    ncurses perl zlib python
+  ];
+
+  configurePhase = ''
+    :
+  '';
+
+  buildPhase = ''
+    sed -i 's/-lcurses/-lncurses/' Makefile
+    mkdir -p $out
+    cp -r . $out/
+    cd $out
+    make
+  '';
+
+  installPhase = ''
+    :
+  '';
+
+  meta = with stdenv.lib; {
+    description = "an operating function";
+    homepage = http://urbit.org/preview/~2015.9.25/materials;
+    license = licenses.mit;
+    maintainers = with maintainers; [ mudri ];
+  };
+}