Porting changes from stdenv-updates into this branch.

This comes from:
svn diff  ^/nixpkgs/trunk/@18255 ^/nixpkgs/branches/stdenv-updates/ > diff
patch -p0 < diff
and then adding into svn all files new from the patch.

trunk@18255 comes from the last time I updated stdenv-updates from trunk.


svn path=/nixpkgs/stdenv-updates2/; revision=18272

pkgs/build-support/kernel/modules-closure.sh

@@ -22,7 +22,7 @@ for module in $rootModules; do
 done
 
 echo "closure:"
-ensureDir $out
+ensureDir $out/lib/modules/"$version"
 for module in $closure; do
     target=$(echo $module | sed "s^/nix/store/.*/lib/modules/^$out/lib/modules/^")
     if test -e "$target"; then continue; fi