From 13a7680502ebe0b13d04da29ade93de161328b29 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Wed, 8 Oct 2025 08:58:26 +0000
Subject: [PATCH] ledger: fix cmake 4 compatibility

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

diff --git a/pkgs/by-name/le/ledger/package.nix b/pkgs/by-name/le/ledger/package.nix
index 76d8b4b81bab..94cd731c36ea 100644
--- a/pkgs/by-name/le/ledger/package.nix
+++ b/pkgs/by-name/le/ledger/package.nix
@@ -99,6 +99,10 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "BUILD_DOCS" true)
     (lib.cmakeBool "USE_PYTHON" usePython)
     (lib.cmakeBool "USE_GPGME" gpgmeSupport)
+
+    # CMake 4 dropped support of versions lower than 3.5, and versions
+    # lower than 3.10 are deprecated.
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.10")
   ];
 
   installTargets = [