Fix more gets() problems

pkgs/tools/archivers/gnutar/default.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchurl }:
 
-stdenv.mkDerivation (rec {
+stdenv.mkDerivation rec {
   name = "gnutar-1.26";
 
   src = fetchurl {
@@ -8,6 +8,12 @@ stdenv.mkDerivation (rec {
     sha256 = "0hbdkzmchq9ycr2x1pxqdcgdbaxksh8c6ac0jf75jajhcks6jlss";
   };
 
+  patches = [ ./gets-undeclared.patch ];
+
+  # May have some issues with root compilation because the bootstrap tool
+  # cannot be used as a login shell for now.
+  FORCE_UNSAFE_CONFIGURE = stdenv.lib.optionalString (stdenv.system == "armv7l-linux") "1";
+
   meta = {
     homepage = http://www.gnu.org/software/tar/;
     description = "GNU implementation of the `tar' archiver";
@@ -33,18 +39,3 @@ stdenv.mkDerivation (rec {
     platforms = stdenv.lib.platforms.all;
   };
 }
-  # May have some issues with root compilation because the bootstrap tool
-  # cannot be used as a login shell for now.
-// stdenv.lib.optionalAttrs (stdenv.system == "armv7l-linux") {
-  FORCE_UNSAFE_CONFIGURE = 1;
-}
-
-//
-
-{
-  crossAttrs =
-    # XXX: Temporary workaround to allow GNU/Hurd builds with newer libcs.
-    (stdenv.lib.optionalAttrs (stdenv.cross.config == "i586-pc-gnu") {
-      patches = [ ./gets-undeclared.patch ];
-    });
-})