From eb047010f8ae35f60b3415df7091dad9b6a92d34 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Llu=C3=ADs=20Batlle=20i=20Rossell?=
 <viric@vicerveza.homeunix.net>
Date: Mon, 1 Mar 2010 23:22:48 +0000
Subject: [PATCH] Trying to get a better expression for uboot upstream,
 allowing normal and cross build with proper assertions.

svn path=/nixpkgs/trunk/; revision=20319
---
 pkgs/misc/uboot/default.nix     | 64 ++++++++++++++++++++-------------
 pkgs/top-level/all-packages.nix |  2 +-
 2 files changed, 40 insertions(+), 26 deletions(-)

diff --git a/pkgs/misc/uboot/default.nix b/pkgs/misc/uboot/default.nix
index 7730921cbfe..ffd40673b2f 100644
--- a/pkgs/misc/uboot/default.nix
+++ b/pkgs/misc/uboot/default.nix
@@ -1,9 +1,23 @@
-{stdenv, fetchurl, unzip, platform}:
+{stdenv, fetchurl, unzip}:
 
-# This does not cover the case for cross-building, but we need some filtering
-# for the normal stdenv, in order to build the nixpkgs tarball
-assert (stdenv.system != "i686-linux" && stdenv.system != "x86_64-linux")
-  || (stdenv ? cross);
+let
+  platform = stdenv.platform;
+  configureFun = ubootConfig :
+    ''
+      make mrproper
+      make ${ubootConfig} NBOOT=1 LE=1
+    '';
+
+  buildFun = kernelArch :
+    ''
+      unset src
+      if test -z "$crossConfig"; then
+          make clean all
+      else
+          make clean all ARCH=${kernelArch} CROSS_COMPILE=$crossConfig-
+      fi
+    '';
+in
 
 stdenv.mkDerivation {
   name = "uboot-2009.11";
@@ -13,26 +27,6 @@ stdenv.mkDerivation {
     sha256 = "1rld7q3ww89si84g80hqskd1z995lni5r5xc4d4322n99wqiarh6";
   };
 
-  # patches = [ ./gas220.patch ];
-
-  # Remove the cross compiler prefix, and add reiserfs support
-  configurePhase = assert (platform ? ubootConfig);
-    ''
-      make mrproper
-      make ${platform.ubootConfig} NBOOT=1 LE=1
-      sed -i /CROSS_COMPILE/d include/config.mk
-    '';
-
-  buildPhase = assert (platform ? kernelArch);
-    ''
-      unset src
-      if test -z "$crossConfig"; then
-          make clean all
-      else
-          make clean all ARCH=${platform.kernelArch} CROSS_COMPILE=$crossConfig-
-      fi
-    '';
-
   buildNativeInputs = [ unzip ];
 
   dontStrip = true;
@@ -46,4 +40,24 @@ stdenv.mkDerivation {
     ensureDir $out/bin
     cp tools/{envcrc,mkimage} $out/bin
   '';
+
+  configurePhase =
+    assert platform ? uboot && platform.uboot != null;
+    assert (platform ? ubootConfig);
+      configureFun platform.ubootConfig;
+
+  buildPhase = assert (platform ? kernelArch);
+    buildFun platform.kernelArch;
+
+  crossAttrs = let
+      cp = stdenv.cross.platform;
+    in
+    assert cp ? uboot && cp.uboot != null;
+    {
+      configurePhase = assert (cp ? ubootConfig);
+        configureFun cp.ubootConfig;
+
+      buildPhase = assert (cp ? kernelArch);
+        buildFun cp.kernelArch;
+    };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f42abb88664..99c7bc32e71 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6344,7 +6344,7 @@ let
     else throw "Unknown uboot";
 
   ubootUpstream  = makeOverridable (import ../misc/uboot) {
-    inherit fetchurl stdenv unzip platform;
+    inherit fetchurl stdenv unzip;
   };
 
   ubootSheevaplug = makeOverridable (import ../misc/uboot/sheevaplug.nix) {