1 files changed, 9 insertions, 4 deletions
diff --git a/pkgs/tools/package-management/nix/unstable.nix b/pkgs/tools/package-management/nix/unstable.nix
index 1483120e4096..304870556693 100644
--- a/pkgs/tools/package-management/nix/unstable.nix
+++ b/pkgs/tools/package-management/nix/unstable.nix
@@ -5,11 +5,11 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "nix-1.0pre30070";
+  name = "nix-1.0pre30706";
 
   src = fetchurl {
-    url = "http://hydra.nixos.org/build/1480955/download/4/${name}.tar.bz2";
-    sha256 = "71335de404ec6745418b524622527b470485fb968bf7cf10a0cb67926ee1286a";
+    url = "http://hydra.nixos.org/build/1580753/download/4/${name}.tar.bz2";
+    sha256 = "2658a4fea95799d8719685a808ab354f0b5a3ce38af92117e1a15c394c261c5b";
   };
 
   buildNativeInputs = [ perl pkgconfig ];
@@ -31,9 +31,14 @@ stdenv.mkDerivation rec {
       ''
         --with-store-dir=${storeDir} --localstatedir=${stateDir}
         --with-bzip2=${bzip2.hostDrv} --with-sqlite=${sqlite.hostDrv}
+        --enable-gc
+        --with-dbi=${perlPackages.DBI}/lib/perl5/site_perl
+        --with-dbd-sqlite=${perlPackages.DBDSQLite}/lib/perl5/site_perl
         --disable-init-state
         CFLAGS=-O3 CXXFLAGS=-O3
-      '';
+      '' + stdenv.lib.optionalString (
+          stdenv.cross ? nix && stdenv.cross.nix ? system
+      ) ''--with-system=${stdenv.cross.nix.system}'';
     doCheck = false;
   };