From 8e6011c707dcc6ea2c726d486a325f2a728ff638 Mon Sep 17 00:00:00 2001
From: Sam Estep <sam@samestep.com>
Date: Fri, 24 Oct 2025 09:34:02 -0400
Subject: [PATCH] libsForQt5.kdiagram: fix build with cmake 4

---
 .../kdiagram/cmake-minimum-required.patch     | 34 +++++++++++++++++++
 .../libraries/kdiagram/default.nix            |  3 ++
 2 files changed, 37 insertions(+)
 create mode 100644 pkgs/development/libraries/kdiagram/cmake-minimum-required.patch

diff --git a/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch b/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch
new file mode 100644
index 000000000000..e41de5e30ac7
--- /dev/null
+++ b/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch
@@ -0,0 +1,34 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 12dbdbb..22495bb 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-cmake_minimum_required(VERSION 2.8.12)
++cmake_minimum_required(VERSION 3.10)
+ 
+ project( kdiagram )
+ 
+diff --git a/src/KChart/CMakeLists.txt b/src/KChart/CMakeLists.txt
+index 676b71f..a9a2928 100644
+--- a/src/KChart/CMakeLists.txt
++++ b/src/KChart/CMakeLists.txt
+@@ -359,6 +359,7 @@ install(EXPORT KChartTargets
+ ecm_generate_pri_file(
+     BASE_NAME KChart
+     LIB_NAME KChart
++    VERSION ${KCHARTLIB_VERSION}
+     DEPS "widgets svg"
+     FILENAME_VAR PRI_FILENAME
+     INCLUDE_INSTALL_DIR ${INCLUDE_INSTALL_DIR}/KChart
+diff --git a/src/KGantt/CMakeLists.txt b/src/KGantt/CMakeLists.txt
+index 107d762..5cbb254 100644
+--- a/src/KGantt/CMakeLists.txt
++++ b/src/KGantt/CMakeLists.txt
+@@ -183,6 +183,7 @@ install(EXPORT KGanttTargets
+ ecm_generate_pri_file(
+     BASE_NAME KGantt
+     LIB_NAME KGantt
++    VERSION ${KGANTTLIB_VERSION}
+     DEPS "widgets printsupport"
+     FILENAME_VAR PRI_FILENAME
+     INCLUDE_INSTALL_DIR ${INCLUDE_INSTALL_DIR}/KGantt
diff --git a/pkgs/development/libraries/kdiagram/default.nix b/pkgs/development/libraries/kdiagram/default.nix
index 6d52a84c97b8..e280ffbc21ac 100644
--- a/pkgs/development/libraries/kdiagram/default.nix
+++ b/pkgs/development/libraries/kdiagram/default.nix
@@ -18,6 +18,9 @@ mkDerivation rec {
     rev = "v${version}";
     sha256 = "sha256-Se131GZE12wqdfN/V4id1pphUvteSrmMaKZ0+lqg1z8=";
   };
+  patches = [
+    ./cmake-minimum-required.patch
+  ];
   nativeBuildInputs = [
     extra-cmake-modules
     qttools