Begin refactoring low-level foreign imports into their own hierarchy

It’s clear at this point that this system is going to get large enough
that a two-layer implementation is warranted. `Internal` will contain
low-level bindings to BoringSSL; other modules will export an idiomatic
interface on top of them.

1 files changed, 2 insertions, 0 deletions

diff --git a/btls.cabal b/btls.cabal
index 0359ab7..4f46ec3 100644
--- a/btls.cabal
+++ b/btls.cabal
@@ -56,6 +56,8 @@ library
   other-modules:       Data.Digest.Internal
                      , Foreign.Ptr.Cast
                      , Foreign.Ptr.ConstantTimeEquals
+                     , Internal.Base
+                     , Internal.Digest
                      , Result
   c-sources:           cbits/btls.c
   -- Use special names for the BoringSSL libraries to avoid accidentally pulling