From 11bc0ce89c63294555b44ab7f5a39d36954b48b4 Mon Sep 17 00:00:00 2001
From: Rafael Ieda <git@ieda.me>
Date: Sat, 25 Oct 2025 14:03:35 -0300
Subject: [PATCH] mt32emu-smf2wav: fix build with cmake4

---
 pkgs/by-name/mt/mt32emu-smf2wav/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/mt/mt32emu-smf2wav/package.nix b/pkgs/by-name/mt/mt32emu-smf2wav/package.nix
index ea3bd25ef941..63ec93ce6da5 100644
--- a/pkgs/by-name/mt/mt32emu-smf2wav/package.nix
+++ b/pkgs/by-name/mt/mt32emu-smf2wav/package.nix
@@ -21,6 +21,11 @@ stdenv.mkDerivation (finalAttrs: {
 
   postPatch = ''
     sed -i -e '/add_subdirectory(mt32emu)/d' CMakeLists.txt
+    # This directly resolves the 'The dependency target "mt32emu" ... does not exist' error.
+    sed -i -e '/add_dependencies(mt32emu-smf2wav mt32emu)/d' CMakeLists.txt
+
+    substituteInPlace {./,mt32emu_smf2wav/,mt32emu_smf2wav/libsmf/}CMakeLists.txt \
+      --replace-fail "cmake_minimum_required(VERSION 2.8.12)" "cmake_minimum_required(VERSION 3.10)"
   '';
 
   nativeBuildInputs = [