From a9eee7c2e13f49f59b15cdf3e4ce84f1533e330f Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Sat, 18 Oct 2025 21:42:19 +0200
Subject: [PATCH] flopoco: fix build with cmake 4

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

diff --git a/pkgs/by-name/fl/flopoco/package.nix b/pkgs/by-name/fl/flopoco/package.nix
index b2e81c17764c..6d32636b1098 100644
--- a/pkgs/by-name/fl/flopoco/package.nix
+++ b/pkgs/by-name/fl/flopoco/package.nix
@@ -74,6 +74,10 @@ stdenv.mkDerivation {
     ./flopoco BuildAutocomplete
   '';
 
+  cmakeFlags = [
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+  ];
+
   installPhase = ''
     runHook preInstall