From 3664af59f2ea128c500cffec364c0b905cdc5207 Mon Sep 17 00:00:00 2001
From: tegwick <bernd.worsch@gmail.com>
Date: Fri, 1 May 2026 23:27:21 +0200
Subject: [PATCH] chore(debug): add -ddump-if-trace to inter-hub-models to
 diagnose GHC crash

All 477 modules compile successfully but GHC panics at position 287,686,318
during finalization. Trace will show which .hi file is being read at crash time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 flake.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/flake.nix b/flake.nix
index faa4236..9ef1e1c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -124,6 +124,7 @@
                                            configureFlags = (old.configureFlags or []) ++ [
                                                "--ghc-option=-O0"
                                                "--ghc-option=-fomit-interface-pragmas"
+                                               "--ghc-option=-ddump-if-trace"
                                            ];
                                            postUnpack = (old.postUnpack or "") + ''
                                                _actual="$sourceRoot/build/Generated/ActualTypes.hs"