ipfs: fix build on darwin

pkgs/applications/networking/ipfs/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, buildGoModule, fetchFromGitHub }:
+{ stdenv, buildGoModule, fetchFromGitHub, Security }:
 
 buildGoModule rec {
   pname = "ipfs";
@@ -18,6 +18,8 @@ buildGoModule rec {
 
   modSha256 = "12m4ind1s8zaa6kssblc28z2cafy20w2jp80kzif39hg5ar9bijm";
 
+  buildInputs = stdenv.lib.optionals stdenv.isDarwin [ Security ];
+
   meta = with stdenv.lib; {
     description = "A global, versioned, peer-to-peer filesystem";
     homepage = https://ipfs.io/;