From e008a8fd7bdafb069c1a0dda800c58e0c9dfc333 Mon Sep 17 00:00:00 2001
From: Mauricio Collares <mauricio@collares.org>
Date: Sat, 1 Aug 2026 09:50:01 -0300
Subject: [PATCH] lcalc: fix build

---
 pkgs/by-name/lc/lcalc/package.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/by-name/lc/lcalc/package.nix b/pkgs/by-name/lc/lcalc/package.nix
index e29277b96f37..64f591d9f107 100644
--- a/pkgs/by-name/lc/lcalc/package.nix
+++ b/pkgs/by-name/lc/lcalc/package.nix
@@ -19,6 +19,10 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-L9502+lwSPLk63C14Pxa8OZWhnY4OqKv9WudZO2vP7E=";
   };
 
+  # upstream ships a patched ltmain.sh from libtool 2.5.4. the patch
+  # is already included in libtool 2.6.1.
+  postPatch = "sed -i '/ltmain.sh/d' configure.ac";
+
   nativeBuildInputs = [
     autoreconfHook
     gengetopt