* "ensureDir" -> "mkdir -p". "ensureDir" is a rather pointless

function, so obsolete it.

svn path=/nixpkgs/branches/stdenv-updates/; revision=31644

pkgs/applications/science/math/singular/default.nix

@@ -37,7 +37,7 @@ rec {
   fixInstall = a.fullDepEntry (''
     rm -rf "$out/LIB"
     cp -r Singular/LIB "$out"
-    ensureDir "$out/bin"
+    mkdir -p "$out/bin"
     ln -s "$out"/*/Singular "$out/bin"
   '') ["minInit" "defEnsureDir"];