From 7de8722dc3d9bde0fed3fb066967b66d58f398cb Mon Sep 17 00:00:00 2001
From: SpringerJack <springerjack@pm.me>
Date: Wed, 4 Dec 2024 22:51:17 +0100
Subject: [PATCH] ipe: optional support for qvoronoi

Ipe can optionally compiled with ipelets computing Voronoi diagrams. This
depends on qhull and is therefore needs to be enabled explicitly.
---
 pkgs/applications/graphics/ipe/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/graphics/ipe/default.nix b/pkgs/applications/graphics/ipe/default.nix
index aa12c5861f2e..ff49948bdb14 100644
--- a/pkgs/applications/graphics/ipe/default.nix
+++ b/pkgs/applications/graphics/ipe/default.nix
@@ -15,9 +15,11 @@
 , qtbase
 , qtsvg
 , texliveSmall
+, qhull
 , wrapQtAppsHook
 , zlib
 , withTeXLive ? true
+, withQVoronoi ? false
 , buildPackages
 }:
 
@@ -48,6 +50,8 @@ stdenv.mkDerivation rec {
     zlib
   ] ++ (lib.optionals withTeXLive [
     texliveSmall
+  ]) ++ (lib.optionals withQVoronoi [
+    qhull
   ]);
 
   makeFlags = [
@@ -56,7 +60,10 @@ stdenv.mkDerivation rec {
     "LUA_PACKAGE=lua"
     "MOC=${buildPackages.qt6Packages.qtbase}/libexec/moc"
     "IPE_NO_SPELLCHECK=1" # qtSpell is not yet packaged
-  ];
+  ] ++ (lib.optionals withQVoronoi [
+    "IPEQVORONOI=1"
+    "QHULL_CFLAGS=-I${qhull}/include/libqhull_r"
+  ]);
 
   qtWrapperArgs = lib.optionals withTeXLive [ "--prefix PATH : ${lib.makeBinPath [ texliveSmall ]}" ];