From 4922d9acc67a3780debd3ca4fb6ecd765d998492 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oliv=C3=A9r=20Falvai?= <ofalvai@gmail.com>
Date: Wed, 12 Feb 2025 21:25:43 +0100
Subject: [PATCH] python3Packages.pygal: fix darwin sandbox build

---
 pkgs/development/python-modules/pygal/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/python-modules/pygal/default.nix b/pkgs/development/python-modules/pygal/default.nix
index 52265c6ae970..2585c7dda9f5 100644
--- a/pkgs/development/python-modules/pygal/default.nix
+++ b/pkgs/development/python-modules/pygal/default.nix
@@ -56,6 +56,10 @@ buildPythonPackage rec {
     export LANG=en_US.UTF-8
   '';
 
+  # Cairo tries to load system fonts by default.
+  # It's surfaced as a Cairo "out of memory" error in tests.
+  __impureHostDeps = [ "/System/Library/Fonts" ];
+
   postCheck = ''
     export LANG=${if stdenv.isDarwin then "en_US.UTF-8" else "C.UTF-8"}
   '';