updated many dependencies, ghc 8.x

Updated many dependencies, notably secret-sharing which dropped the dep on
polynomial, and so allows building with ghc 8.x.

Did not try to support building with older ghc because the semigroup-monid
transition would make it nontrivial.

Stackage lts-14.25 is a compromise, since the stack shipped in debian (even
unstable) is not able to handle newer ones.

This commit was sponsored by Eric Drechsel on Patreon.

1 files changed, 0 insertions, 1 deletions

diff --git a/keysafe.hs b/keysafe.hs
index d6c2a5e..d568c8a 100644
--- a/keysafe.hs
+++ b/keysafe.hs
@@ -32,7 +32,6 @@ import qualified Gpg
 import Data.Maybe
 import Data.Time.Clock
 import Data.Time.Calendar
-import Data.Monoid
 import Data.List
 import Control.DeepSeq
 import Control.Concurrent.Async