From 0431d32b1175dae6f471d9cea3c9fc664d9fe25d Mon Sep 17 00:00:00 2001
From: Steven Allen <steven@stebalien.com>
Date: Sat, 28 Feb 2026 07:50:02 -0800
Subject: [PATCH] calibre: fix build until #472656 lands on master

This applies a workaround suggested by @wrvsrv. Unfortunately, the
correct fix (#472656) requires a mass rebuild so it'll take a while to
pass through staging.

fixes #493843
---
 pkgs/by-name/ca/calibre/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/ca/calibre/package.nix b/pkgs/by-name/ca/calibre/package.nix
index 3da071d9b4d6..0f5c8dead6cc 100644
--- a/pkgs/by-name/ca/calibre/package.nix
+++ b/pkgs/by-name/ca/calibre/package.nix
@@ -184,6 +184,9 @@ stdenv.mkDerivation (finalAttrs: {
   installPhase = ''
     runHook preInstall
 
+    # Work around #493843 until #493988 lands on master.
+    export QMAKE="${qt6.qtbase}/bin/qmake"
+
     python setup.py install --root=$out \
       --prefix=$out \
       --libdir=$out/lib \