Use general hardening flag toggle lists

The following parameters are now available:

  * hardeningDisable
    To disable specific hardening flags
  * hardeningEnable
    To enable specific hardening flags

Only the cc-wrapper supports this right now, but these may be reused by
other wrappers, builders or setup hooks.

cc-wrapper supports the following flags:

  * fortify
  * stackprotector
  * pie (disabled by default)
  * pic
  * strictoverflow
  * format
  * relro
  * bindnow

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/servers/memcached/default.nix b/pkgs/servers/memcached/default.nix
index cac568f8fc9..5e4edd0b032 100644
--- a/pkgs/servers/memcached/default.nix
+++ b/pkgs/servers/memcached/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [cyrus_sasl libevent];
 
-  hardening_pie = true;
+  hardeningEnable = [ "pie" ];
 
   meta = with stdenv.lib; {
     description = "A distributed memory object caching system";