1 files changed, 7 insertions, 0 deletions
diff --git a/pkgs/development/lisp-modules/quicklisp-to-nix-output/swap-bytes.nix b/pkgs/development/lisp-modules/quicklisp-to-nix-output/swap-bytes.nix
index cb1e293919b44..8dc37b52342cb 100644
--- a/pkgs/development/lisp-modules/quicklisp-to-nix-output/swap-bytes.nix
+++ b/pkgs/development/lisp-modules/quicklisp-to-nix-output/swap-bytes.nix
@@ -11,4 +11,11 @@ rec {
     url = ''http://beta.quicklisp.org/archive/swap-bytes/2016-09-29/swap-bytes-v1.1.tgz'';
     sha256 = ''0snwbfplqhg1y4y4m7lgvksg1hs0sygfikz3rlbkfl4gwg8pq8ky'';
   };
+
+  overrides = x: {
+    postInstall = ''
+        echo "$CL_SOURCE_REGISTRY"
+        NIX_LISP_PRELAUNCH_HOOK='nix_lisp_run_single_form "(asdf:load-system :swap-bytes)"' "$out/bin/swap-bytes-lisp-launcher.sh" ""
+    '';
+  };
 }