From ff920c5f7b736a7dd41f71a7d830340499c3df39 Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Wed, 12 Oct 2022 14:51:01 +0200
Subject: [PATCH] haskellPackages.cabal2nix-unstable: 2022-07-22 -> 2022-10-10

---
 maintainers/scripts/haskell/update-cabal2nix-unstable.sh | 2 +-
 pkgs/development/haskell-modules/cabal2nix-unstable.nix  | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/maintainers/scripts/haskell/update-cabal2nix-unstable.sh b/maintainers/scripts/haskell/update-cabal2nix-unstable.sh
index 415837045602..545c5773ff48 100755
--- a/maintainers/scripts/haskell/update-cabal2nix-unstable.sh
+++ b/maintainers/scripts/haskell/update-cabal2nix-unstable.sh
@@ -14,4 +14,4 @@ commit="$(jq -r .commit.sha <<< "$head_info")"
 date="$(date "--date=$(jq -r .commit.commit.committer.date <<< "$head_info")" +%F)"
 # generate nix expression from cabal file, replacing the version with the commit date
 echo '# This file defines cabal2nix-unstable, used by maintainers/scripts/haskell/regenerate-hackage-packages.sh.' > pkgs/development/haskell-modules/cabal2nix-unstable.nix
-cabal2nix "https://github.com/NixOS/cabal2nix/archive/$commit.tar.gz" | sed -e 's/version = ".*"/version = "'"unstable-$date"'"/' >> pkgs/development/haskell-modules/cabal2nix-unstable.nix
+cabal2nix --subpath cabal2nix "https://github.com/NixOS/cabal2nix/archive/$commit.tar.gz" | sed -e 's/version = ".*"/version = "'"unstable-$date"'"/' >> pkgs/development/haskell-modules/cabal2nix-unstable.nix
diff --git a/pkgs/development/haskell-modules/cabal2nix-unstable.nix b/pkgs/development/haskell-modules/cabal2nix-unstable.nix
index 0c12426434c5..4dc6ca80d125 100644
--- a/pkgs/development/haskell-modules/cabal2nix-unstable.nix
+++ b/pkgs/development/haskell-modules/cabal2nix-unstable.nix
@@ -8,11 +8,12 @@
 }:
 mkDerivation {
   pname = "cabal2nix";
-  version = "unstable-2022-07-22";
+  version = "unstable-2022-10-10";
   src = fetchzip {
-    url = "https://github.com/NixOS/cabal2nix/archive/e00ab24821be85cb025432f8e9c4ff56dbb00a81.tar.gz";
-    sha256 = "11a5l0fdj67bpqv30af4v5zxr3c7n9p81pfs4c0d3w65bmr9sa1y";
+    url = "https://github.com/NixOS/cabal2nix/archive/b3ae6f9240d07ba103f1eb7ab22f6055e9cdb7dc.tar.gz";
+    sha256 = "0ym6lyp4br57442b6a9cg9bczbjqz8nz984rxwiacldqzndk8jbr";
   };
+  postUnpack = "sourceRoot+=/cabal2nix; echo source root reset to $sourceRoot";
   isLibrary = true;
   isExecutable = true;
   libraryHaskellDepends = [