add patches:

* nix-0.10pre5896-paths.patch :: this path adds coreutils to the searchpath,
so nix-prefetch-url can find "basename"
* nix-0.10pre5896-chroot-once.patch :: unsets NIX_ROOT in various scripts,
to prevent that when NIX_ROOT is set and one of the nix tools is called that
chroot() is performed once more

svn path=/nixpkgs/trunk/; revision=6023

pkgs/misc/nix-unstable/default.nix

@@ -20,5 +20,5 @@ stdenv.mkDerivation {
   # uncomment if you want to be able to use nix-prefetch-url when NIX_ROOT
   # is set
   #patches = [./nix-0.10pre5679.patch];
-  patches = [./nix-0.10pre5896-date.patch];
+  patches = [./nix-0.10pre5896-date.patch ./nix-0.10pre5896-paths.patch ./nix-0.10pre5896-chroot-once.patch];
 }

pkgs/misc/nix-unstable/nix-0.10pre5896-chroot-once.patch

@@ -0,0 +1,28 @@
+diff -rc nix-0.10pre5896/scripts/download-using-manifests.pl.in nix-0.10pre5896.new/scripts/download-using-manifests.pl.in
+*** nix-0.10pre5896/scripts/download-using-manifests.pl.in	2006-07-24 20:39:47.000000000 +0200
+--- nix-0.10pre5896.new/scripts/download-using-manifests.pl.in	2006-08-02 21:45:53.000000000 +0200
+***************
+*** 9,14 ****
+--- 9,15 ----
+  
+  open LOGFILE, ">>$logFile" or die "cannot open log file $logFile";
+  
++ delete $ENV{"NIX_ROOT"};
+  
+  # Create a temporary directory.
+  my $tmpDir;
+diff -rc nix-0.10pre5896/scripts/nix-prefetch-url.in nix-0.10pre5896.new/scripts/nix-prefetch-url.in
+*** nix-0.10pre5896/scripts/nix-prefetch-url.in	2006-07-24 20:39:47.000000000 +0200
+--- nix-0.10pre5896.new/scripts/nix-prefetch-url.in	2006-08-02 21:13:46.000000000 +0200
+***************
+*** 3,8 ****
+--- 3,11 ----
+  url=$1
+  expHash=$2
+  
++ # to prevent doing more than 1 chroot
++ unset NIX_ROOT
++ 
+  hashType=$NIX_HASH_ALGO
+  if test -z "$hashType"; then
+      hashType=md5

pkgs/misc/nix-unstable/nix-0.10pre5896-paths.patch

@@ -0,0 +1,14 @@
+diff -rc nix-0.10pre5896/scripts/nix-prefetch-url.in nix-0.10pre5896.new/scripts/nix-prefetch-url.in
+*** nix-0.10pre5896/scripts/nix-prefetch-url.in	2006-07-24 20:39:47.000000000 +0200
+--- nix-0.10pre5896.new/scripts/nix-prefetch-url.in	2006-08-02 20:01:15.000000000 +0200
+***************
+*** 3,8 ****
+--- 3,10 ----
+  url=$1
+  expHash=$2
+  
++ export PATH=$PATH:@coreutils@
++ 
+  hashType=$NIX_HASH_ALGO
+  if test -z "$hashType"; then
+      hashType=md5