* Doh.

svn path=/nixpkgs/branches/purity-test/; revision=11312

pkgs/development/tools/misc/binutils/ar-purity.patch

@@ -0,0 +1,19 @@
+diff -rc binutils-2.18/bfd/archive.c binutils-2.18-new/bfd/archive.c
+*** binutils-2.18/bfd/archive.c	2007-08-06 21:59:14.000000000 +0200
+--- binutils-2.18-new/bfd/archive.c	2008-03-27 13:17:55.000000000 +0100
+***************
+*** 1383,1388 ****
+--- 1383,1395 ----
+        return NULL;
+      }
+  
++   char * envvar = getenv("NIX_AR_FORCE_PURITY");
++   if (envvar && strcmp(envvar, "1") == 0) {
++       status.st_mtime = 0;
++       status.st_uid = 0;
++       status.st_gid = 0;
++   }
++ 
+    amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
+    ared = bfd_zalloc (abfd, amt);
+    if (ared == NULL)

pkgs/development/tools/misc/binutils/default.nix

@@ -2,12 +2,23 @@
 
 stdenv.mkDerivation {
   name = "binutils-2.18";
+  
   builder = ./builder.sh;
+  
   src = fetchurl {
     url = mirror://gnu/binutils/binutils-2.18.tar.bz2;
     sha256 = "16zfc7llbjdn69bbdy7kqgg2xa67ypgj7z5qicgwzvghaaj36yj8";
   };
+
+  patches = [
+    # Set timestamps, uids and gids in .a archives to 0 during Nix
+    # builds so that multiple builds of the same derivation yield the
+    # same result.
+    ./ar-purity.patch
+  ];
+  
   inherit noSysDirs;
+  
   configureFlags = "--disable-werror"; # needed for dietlibc build
 
   meta = {

pkgs/stdenv/linux/default.nix

@@ -50,6 +50,7 @@ rec {
     tarball = download {inherit url sha1 pkgname;};
     inherit system;
     allowedReferences = [];
+    dummy = "2";
   };
 
   # The various statically linked components that make up the standard

pkgs/stdenv/linux/scripts/prehook.sh

@@ -1,4 +1,5 @@
 export NIX_ENFORCE_PURITY=1
+export NIX_AR_FORCE_PURITY=1
 
 if test "$param1" = "static"; then
     export NIX_CFLAGS_LINK="-static"

pkgs/top-level/build-for-release.nix

@@ -296,9 +296,9 @@ let
 
 in [
   i686LinuxPkgs
-  x86_64LinuxPkgs
+  #x86_64LinuxPkgs
-  i686FreeBSDPkgs
+  #i686FreeBSDPkgs
-  powerpcDarwinPkgs
+  #powerpcDarwinPkgs
-  i686DarwinPkgs
+  #i686DarwinPkgs
-  cygwinPkgs
+  #cygwinPkgs
 ]