From 288698b6f30f18662fb110b0bbd525f7f91015c4 Mon Sep 17 00:00:00 2001
From: Dave Walker <dave@daviey.com>
Date: Wed, 8 Oct 2025 13:40:34 +0100
Subject: [PATCH] catimg: fix build with cmake 4

CMake 4 removed compatibility with CMake versions < 3.5.
Set CMAKE_POLICY_VERSION_MINIMUM to 3.5 to fix the build failure.

Fixes: https://github.com/NixOS/nixpkgs/issues/449801
Signed-off-by: Dave Walker <dave@daviey.com>
---
 pkgs/by-name/ca/catimg/package.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/by-name/ca/catimg/package.nix b/pkgs/by-name/ca/catimg/package.nix
index 9b2df1c394ec..64ede6e57525 100644
--- a/pkgs/by-name/ca/catimg/package.nix
+++ b/pkgs/by-name/ca/catimg/package.nix
@@ -17,6 +17,13 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake ];
+
+  # Fix build with CMake 4: https://github.com/NixOS/nixpkgs/issues/449801
+  # CMake 4 removed support for CMake < 3.5, so we set the minimum policy version
+  cmakeFlags = [
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+  ];
+
   env = lib.optionalAttrs (stdenv.hostPlatform.libc == "glibc") {
     CFLAGS = "-D_DEFAULT_SOURCE";
   };