From 1050af9533e2a525ddf952b9643f8692fe86d55f Mon Sep 17 00:00:00 2001
From: tegwick <bernd.worsch@gmail.com>
Date: Sat, 2 May 2026 00:26:27 +0200
Subject: [PATCH] chore(build): try -fexternal-interpreter to bypass internal
 static linker

GHC crashes at byte 287,686,318 reading libHSghc-9.10.3.a (~274 MB) via
its internal static linker during TH evaluation of WidgetVersionInclude.
-fexternal-interpreter delegates TH to a separate iserv process using the
dynamic linker, bypassing readAr and the 274 MB archive entirely.

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 5543231..cc634c3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -126,6 +126,7 @@
                                                "--ghc-option=-fomit-interface-pragmas"
                                                "--disable-split-sections"
                                                "--ghc-option=-j1"
+                                               "--ghc-option=-fexternal-interpreter"
                                            ];
                                            postUnpack = (old.postUnpack or "") + ''
                                                _actual="$sourceRoot/build/Generated/ActualTypes.hs"