From 46a129b0a92ac80b38d6f5872ff0fe3d8ea3bb49 Mon Sep 17 00:00:00 2001
From: Emily <vcs@emily.moe>
Date: Tue, 16 Sep 2025 04:28:51 +0100
Subject: [PATCH] libebur128: fix build with CMake 4

Co-authored-by: K900 <me@0upti.me>
---
 pkgs/by-name/li/libebur128/package.nix | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/pkgs/by-name/li/libebur128/package.nix b/pkgs/by-name/li/libebur128/package.nix
index c99256063037..283d0dd432d3 100644
--- a/pkgs/by-name/li/libebur128/package.nix
+++ b/pkgs/by-name/li/libebur128/package.nix
@@ -28,6 +28,20 @@ stdenv.mkDerivation rec {
   postPatch = ''
     substituteInPlace ebur128/libebur128.pc.cmake \
       --replace '$'{prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@
+  ''
+  # Fix the build with CMake 4.
+  #
+  # See:
+  #
+  # * <https://github.com/jiixyj/libebur128/issues/134>
+  # * <https://github.com/jiixyj/libebur128/pull/135>
+  + ''
+    for file in CMakeLists.txt test/CMakeLists.txt; do
+      substituteInPlace "$file" \
+        --replace-fail \
+          'cmake_minimum_required(VERSION 2.8.12' \
+          'cmake_minimum_required(VERSION 3.10'
+    done
   '';
 
   meta = with lib; {