aws-sdk-cpp: propagate Security framework

We need to propagate the Security framework to avoid getting

ld: file not found: /System/Library/Frameworks/Security.framework/Versions/A/Security for architecture x86_64

on linking aws-sdk-cpp libraries.

pkgs/development/libraries/aws-c-io/default.nix

@@ -13,15 +13,14 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
-  buildInputs = [ aws-c-cal aws-c-common s2n-tls] ++ lib.optionals stdenv.isDarwin [ Security ];
+  buildInputs = [ aws-c-cal aws-c-common s2n-tls];
+  propagatedBuildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ Security ];
 
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DCMAKE_MODULE_PATH=${aws-c-common}/lib/cmake"
   ];
 
-  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.isDarwin "-Wno-error";
-
   meta = with lib; {
     description = "AWS SDK for C module for IO and TLS";
     homepage = "https://github.com/awslabs/aws-c-io";