From 0c045e0b8fd826f125ec7d63e946fbcc46e13ed8 Mon Sep 17 00:00:00 2001
From: teodanciu <teodora.danciu@tweag.io>
Date: Fri, 11 Oct 2024 17:13:26 +0100
Subject: [PATCH] Enforce Cabal dependency in byron package

in order to avoid an error when releasing the package
---
 cabal.project                                     | 4 ++++
 eras/byron/ledger/impl/cardano-ledger-byron.cabal | 1 +
 flake.nix                                         | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/cabal.project b/cabal.project
index 40592ffb43a..b6bc78c25f8 100644
--- a/cabal.project
+++ b/cabal.project
@@ -110,6 +110,10 @@ package cardano-ledger-mary
 package cardano-ledger-conway
   flags: +asserts
 
+package cardano-ledger-byron
+  -- Temporary fix, in order to add `Cabal >= 3.12`, to avoid errors when releasing the package
+  ghc-options: -fno-warn-unused-packages
+
 -- Always write GHC env files, because they are needed for repl and by the doctests.
 write-ghc-environment-files: always
 
diff --git a/eras/byron/ledger/impl/cardano-ledger-byron.cabal b/eras/byron/ledger/impl/cardano-ledger-byron.cabal
index bc9d5ea3182..c2026683810 100644
--- a/eras/byron/ledger/impl/cardano-ledger-byron.cabal
+++ b/eras/byron/ledger/impl/cardano-ledger-byron.cabal
@@ -234,6 +234,7 @@ library
         bimap >=0.4 && <0.6,
         binary,
         bytestring,
+        Cabal >=3.12,
         canonical-json,
         cardano-crypto,
         cardano-crypto-wrapper,
diff --git a/flake.nix b/flake.nix
index 62ad6a97e9e..f8028235733 100644
--- a/flake.nix
+++ b/flake.nix
@@ -139,7 +139,7 @@
               packages.cardano-ledger-shelley-ma-test.configureFlags = ["--ghc-option=-Werror"];
               packages.small-steps.configureFlags = ["--ghc-option=-Werror"];
               packages.cardano-ledger-byron = {
-                configureFlags = ["--ghc-option=-Werror"];
+                configureFlags = ["--ghc-option=-Werror --ghc-option=-fno-warn-unused-packages"];
                 components = {
                   tests.cardano-ledger-byron-test = {
                     preCheck = ''