add initial solution for day09

1 files changed, 2 insertions, 1 deletions

diff --git a/default.nix b/default.nix
index 64861a5..78e9f1f 100644
--- a/default.nix
+++ b/default.nix
@@ -3,8 +3,9 @@ mkDerivation {
   pname = "aoc";
   version = "0.1.0.0";
   src = ./.;
-  isLibrary = false;
+  isLibrary = true;
   isExecutable = true;
+  libraryHaskellDepends = [ base ];
   executableHaskellDepends = [ base containers parsec ];
   license = "unknown";
   hydraPlatforms = stdenv.lib.platforms.none;