From c118127ced69189b03bab8a3f15acccade55c449 Mon Sep 17 00:00:00 2001
From: OPNA2608 <opna2608@protonmail.com>
Date: Thu, 9 Oct 2025 21:35:42 +0200
Subject: [PATCH] milkytracker: Fix build with CMake 4

---
 pkgs/by-name/mi/milkytracker/package.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/by-name/mi/milkytracker/package.nix b/pkgs/by-name/mi/milkytracker/package.nix
index 79984316f1dc..9fbf0d723ca4 100644
--- a/pkgs/by-name/mi/milkytracker/package.nix
+++ b/pkgs/by-name/mi/milkytracker/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch2,
   gitUpdater,
   alsa-lib,
   cmake,
@@ -26,6 +27,16 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-IMX1+gJUghBxnaSTWnfDYzQVbKFQzQIS70H+L6ogVro=";
   };
 
+  patches = [
+    # Fix compat with CMake 4
+    # Remove when version > 1.06
+    (fetchpatch2 {
+      name = "0001-milkytracker-Build-SET-CMP0004-OLD-only-if-CMake-lt-4.0.patch";
+      url = "https://github.com/milkytracker/MilkyTracker/commit/517b27faf6e1471c2ccb25c3c22f78eb862cd552.patch?full_index=1";
+      hash = "sha256-/+Orf6BKZxhe90VT7p0gdJtHDHLrJy+rmPt03ma410s=";
+    })
+  ];
+
   strictDeps = true;
 
   nativeBuildInputs = [