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

pkgs/development/libraries/db/db-4.4.nix

@@ -5,5 +5,5 @@ import ./generic.nix (args // rec {
   extraPatches = [ ./cygwin-4.4.patch ];
   sha256 = "0y9vsq8dkarx1mhhip1vaciz6imbbyv37c1dm8b20l7p064bg2i9";
   branch = "4.4";
-  drvArgs = { hardening_format = false; };
+  drvArgs = { hardeningDisable = [ "format" ]; };
 })

pkgs/development/libraries/db/db-4.5.nix

@@ -5,5 +5,5 @@ import ./generic.nix (args // rec {
   extraPatches = [ ./cygwin-4.5.patch ./register-race-fix.patch ];
   sha256 = "0bd81k0qv5i8w5gbddrvld45xi9k1gvmcrfm0393v0lrm37dab7m";
   branch = "4.5";
-  drvArgs = { hardening_format = false; };
+  drvArgs = { hardeningDisable = [ "format" ]; };
 })

pkgs/development/libraries/db/db-4.7.nix

@@ -4,5 +4,5 @@ import ./generic.nix (args // rec {
   version = "4.7.25";
   sha256 = "0gi667v9cw22c03hddd6xd6374l0pczsd56b7pba25c9sdnxjkzi";
   branch = "4.7";
-  drvArgs = { hardening_format = false; };
+  drvArgs = { hardeningDisable = [ "format" ]; };
 })

pkgs/development/libraries/db/db-4.8.nix

@@ -5,5 +5,5 @@ import ./generic.nix (args // rec {
   extraPatches = [ ./clang-4.8.patch ];
   sha256 = "0ampbl2f0hb1nix195kz1syrqqxpmvnvnfvphambj7xjrl3iljg0";
   branch = "4.8";
-  drvArgs = { hardening_format = false; };
+  drvArgs = { hardeningDisable = [ "format" ]; };
 })