From 01ab931ca80e08e3fd6b2aeafd2de9f43ea8d99c Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Sun, 19 Apr 2026 14:06:56 -0700
Subject: [PATCH] fvwm3: pin autoconf at 2.69

Build fails (on Darwin, at least) with autoconf 2.73
---
 pkgs/by-name/fv/fvwm3/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/fv/fvwm3/package.nix b/pkgs/by-name/fv/fvwm3/package.nix
index 57e0fb1fd6a3..e066fa6306fe 100644
--- a/pkgs/by-name/fv/fvwm3/package.nix
+++ b/pkgs/by-name/fv/fvwm3/package.nix
@@ -1,6 +1,7 @@
 {
   lib,
   asciidoctor,
+  autoconf269,
   autoreconfHook,
   cairo,
   fetchFromGitHub,
@@ -40,7 +41,9 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-y1buTWO1vHzloh2e4EK1dkD0uQa7lIFUbNMkEe5x6Vo=";
   };
 
+  # Build fails with autoconf 2.73
   nativeBuildInputs = [
+    autoconf269
     autoreconfHook
     asciidoctor
     pkg-config