From 0416992bba13dc2261a1bc9b3df3f29b2d97c5de Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Fri, 17 Oct 2025 16:56:57 +0200
Subject: [PATCH] pianobooster: use patch to fix cmake build failure

---
 .../bump-cmake-minimum-required-version.patch | 33 +++++++++++++++++++
 pkgs/by-name/pi/pianobooster/package.nix      |  7 +++-
 2 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/by-name/pi/pianobooster/bump-cmake-minimum-required-version.patch

diff --git a/pkgs/by-name/pi/pianobooster/bump-cmake-minimum-required-version.patch b/pkgs/by-name/pi/pianobooster/bump-cmake-minimum-required-version.patch
new file mode 100644
index 000000000000..5b02d1b8ac95
--- /dev/null
+++ b/pkgs/by-name/pi/pianobooster/bump-cmake-minimum-required-version.patch
@@ -0,0 +1,33 @@
+From aba8b1570051e17e9568cfcc2a2b0ed316e90075 Mon Sep 17 00:00:00 2001
+From: Adrian Bunk <bunk@debian.org>
+Date: Sat, 11 Oct 2025 15:39:08 +0300
+Subject: [PATCH] Bump cmake_minimum_required to support CMake 4
+
+---
+ CMakeLists.txt     | 2 +-
+ src/CMakeLists.txt | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 8432a843..c4bbe56e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-cmake_minimum_required(VERSION 2.4)
++cmake_minimum_required(VERSION 3.5)
+ if(COMMAND cmake_policy)
+     cmake_policy(SET CMP0003 NEW)
+ endif(COMMAND cmake_policy)
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index 02867c8f..23bc9eff 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -10,7 +10,7 @@ else()
+    option(USE_BUNDLED_RTMIDI "Build with bundled rtmidi" ON)
+ endif()
+ 
+-cmake_minimum_required(VERSION 2.4)
++cmake_minimum_required(VERSION 3.5)
+ if(COMMAND cmake_policy)
+     cmake_policy(SET CMP0003 NEW)
+ endif(COMMAND cmake_policy)
diff --git a/pkgs/by-name/pi/pianobooster/package.nix b/pkgs/by-name/pi/pianobooster/package.nix
index 955ad3953a16..178c2d1466c6 100644
--- a/pkgs/by-name/pi/pianobooster/package.nix
+++ b/pkgs/by-name/pi/pianobooster/package.nix
@@ -26,6 +26,12 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-1WOlAm/HXSL6QK0Kd1mnFEZxxpMseTG+6WzgMNWt+RA=";
   };
 
+  patches = [
+    # Bump cmake_minimum_required to support CMake 4
+    # https://github.com/pianobooster/PianoBooster/pull/349
+    ./bump-cmake-minimum-required-version.patch
+  ];
+
   postPatch = ''
     substituteInPlace src/Settings.cpp src/GuiMidiSetupDialog.cpp \
       --replace "/usr/share/soundfonts" "${soundfont-fluid}/share/soundfonts" \
@@ -52,7 +58,6 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   cmakeFlags = [
-    "-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
     "-DOpenGL_GL_PREFERENCE=GLVND"
     "-DUSE_JACK=ON"
   ];