From cbf9f5268dfd5c7c531fd4a80092ed30307bea48 Mon Sep 17 00:00:00 2001
From: Peter Becich <peterbecich@gmail.com>
Date: Wed, 3 Jul 2024 22:54:48 -0700
Subject: [PATCH] haskellPackages.cabal_3_12_0_0: fix build

closes: https://github.com/NixOS/nixpkgs/issues/324425
---
 pkgs/development/haskell-modules/configuration-common.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index a3a337417940..1e6cd5e321e5 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -27,6 +27,13 @@ self: super: {
     process = self.process_1_6_20_0;
   }));
 
+  Cabal_3_12_0_0 = doDistribute (super.Cabal_3_12_0_0.override ({
+    Cabal-syntax = self.Cabal-syntax_3_12_0_0;
+  } // lib.optionalAttrs (lib.versionOlder self.ghc.version "9.2.5") {
+    # Use process core package when possible
+    process = self.process_1_6_20_0;
+  }));
+
   # cabal-install needs most recent versions of Cabal and Cabal-syntax,
   # so we need to put some extra work for non-latest GHCs
   inherit (