* Remove trivial builders.

* Make builders unexecutable by removing the hash-bang line and
  execute permission.
* Convert calls to `derivation' to `mkDerivation'.
* Remove `system' and `stdenv' attributes from calls to
  `mkDerivation'.  These transformations were all done automatically,
  so it is quite possible I broke stuff.
* Put the `mkDerivation' function in stdenv/generic.

svn path=/nixpkgs/trunk/; revision=874

pkgs/tools/text/diffutils/builder.sh

@@ -1,3 +0,0 @@
-#! /bin/sh
-. $stdenv/setup
-genericBuild

pkgs/tools/text/diffutils/default.nix

@@ -1,12 +1,9 @@
 {stdenv, fetchurl}:
 
-derivation {
+stdenv.mkDerivation {
   name = "diffutils-2.8.1";
-  system = stdenv.system;
-  builder = ./builder.sh;
   src = fetchurl {
     url = ftp://ftp.nluug.nl/pub/gnu/diffutils/diffutils-2.8.1.tar.gz;
     md5 = "71f9c5ae19b60608f6c7f162da86a428";
   };
-  inherit stdenv;
 }