From c18cbf88ca78340e050c72b7bc77b7222543d5cd Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Mon, 6 Oct 2025 09:23:59 +0300
Subject: [PATCH] libcsptr: fix build with CMake 4.0

Upstream hasn't seen a single commit in the last four years, and there's
no `cmake_minimum_required` present in CMakeLists.txt at all, so setting
CMAKE_POLICY_VERSION_MINIMUM manually it is.
---
 pkgs/by-name/li/libcsptr/package.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/by-name/li/libcsptr/package.nix b/pkgs/by-name/li/libcsptr/package.nix
index d055ec74479f..1b1e0ba59ac9 100644
--- a/pkgs/by-name/li/libcsptr/package.nix
+++ b/pkgs/by-name/li/libcsptr/package.nix
@@ -18,6 +18,10 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
+  cmakeFlags = [
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+  ];
+
   meta = with lib; {
     description = "Smart pointer constructs for the (GNU) C programming language";
     homepage = "https://github.com/Snaipe/libcsptr";