From 974bcac2df2b8445527b9607b7d2785882e7422e Mon Sep 17 00:00:00 2001
From: Arnout Engelen <arnout@bzzt.net>
Date: Sun, 14 Dec 2025 12:54:48 +0100
Subject: [PATCH] kdePackages.libplasma: fix build nondeterminism

Cherry-pick
https://invent.kde.org/plasma/libplasma/-/merge_requests/1406 for wider testing

Fixes #458839
---
 pkgs/kde/plasma/libplasma/default.nix         |  5 +++
 .../plasma/libplasma/rb-extracomponents.patch | 37 +++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 pkgs/kde/plasma/libplasma/rb-extracomponents.patch

diff --git a/pkgs/kde/plasma/libplasma/default.nix b/pkgs/kde/plasma/libplasma/default.nix
index f13240876725..453c9d328f9e 100644
--- a/pkgs/kde/plasma/libplasma/default.nix
+++ b/pkgs/kde/plasma/libplasma/default.nix
@@ -8,6 +8,11 @@
 mkKdeDerivation {
   pname = "libplasma";
 
+  patches = [
+    # https://invent.kde.org/plasma/libplasma/-/merge_requests/1406
+    ./rb-extracomponents.patch
+  ];
+
   extraNativeBuildInputs = [ pkg-config ];
 
   extraBuildInputs = [
diff --git a/pkgs/kde/plasma/libplasma/rb-extracomponents.patch b/pkgs/kde/plasma/libplasma/rb-extracomponents.patch
new file mode 100644
index 000000000000..393a4df780f0
--- /dev/null
+++ b/pkgs/kde/plasma/libplasma/rb-extracomponents.patch
@@ -0,0 +1,37 @@
+commit 49d9faf0b11b3957d36c21f90b9f34933f507438
+Author: Arnout Engelen <arnout@bzzt.net>
+Date:   Sun Dec 14 10:43:57 2025 +0100
+
+    reproducible builds: make qml dependencies explicit
+    
+    Similar to https://qt-project.atlassian.net/browse/QTBUG-137440
+    
+    To fix https://bugs.kde.org/show_bug.cgi?id=512868
+    
+    I'll admit I don't quite know what I'm doing here, I'm mostly guessing and mimicking, but it does seem to remove the nondeterminism :)
+
+diff --git a/src/declarativeimports/plasmaextracomponents/CMakeLists.txt b/src/declarativeimports/plasmaextracomponents/CMakeLists.txt
+index 1a7827819..a8e335af7 100644
+--- a/src/declarativeimports/plasmaextracomponents/CMakeLists.txt
++++ b/src/declarativeimports/plasmaextracomponents/CMakeLists.txt
+@@ -1,4 +1,8 @@
+-ecm_add_qml_module(plasmaextracomponentsplugin VERSION 2.0 URI "org.kde.plasma.extras" GENERATE_PLUGIN_SOURCE)
++ecm_add_qml_module(plasmaextracomponentsplugin URI "org.kde.plasma.extras"
++  VERSION 2.0
++  GENERATE_PLUGIN_SOURCE
++  LIBRARIES org_kde_plasmacomponents3
++)
+ 
+ target_sources(plasmaextracomponentsplugin PRIVATE
+     qmenu.cpp
+@@ -42,7 +46,9 @@ target_link_libraries(plasmaextracomponentsplugin PRIVATE
+         Qt6::Qml
+         Qt6::Widgets
+         KF6::WidgetsAddons
+-        Plasma::Plasma)
++        Plasma::Plasma
++        org_kde_plasmacomponents3
++)
+ 
+ ecm_finalize_qml_module(plasmaextracomponentsplugin DESTINATION ${KDE_INSTALL_QMLDIR})
+