* 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/development/tools/misc/autoconf/default.nix

@@ -1,13 +1,11 @@
 {stdenv, fetchurl, m4, perl}:
-derivation {
+stdenv.mkDerivation {
   name = "autoconf-2.58";
-  system = stdenv.system;
   builder = ./builder.sh;
   src = fetchurl {
     url = ftp://ftp.nluug.nl/pub/gnu/autoconf/autoconf-2.58.tar.bz2;
     md5 = "db3fa3069c6554b3505799c7e1022e2b";
   };
-  stdenv = stdenv;
   m4 = m4;
   perl = perl;
 }