From 523030c5bc7336f077ba20045aec5b2e1e00f541 Mon Sep 17 00:00:00 2001
From: Phillip Cloud <417981+cpcloud@users.noreply.github.com>
Date: Wed, 2 Nov 2022 07:52:29 -0400
Subject: [PATCH] python3Packages.duckdb: build using `$NIX_BUILD_CORES`

---
 pkgs/development/python-modules/duckdb/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/python-modules/duckdb/default.nix b/pkgs/development/python-modules/duckdb/default.nix
index d7878bd6a44d..c61dfc9f4da4 100644
--- a/pkgs/development/python-modules/duckdb/default.nix
+++ b/pkgs/development/python-modules/duckdb/default.nix
@@ -19,6 +19,7 @@ buildPythonPackage rec {
 
   preConfigure = ''
     cd tools/pythonpkg
+    substituteInPlace setup.py --replace "multiprocessing.cpu_count()" "$NIX_BUILD_CORES"
   '';
 
   SETUPTOOLS_SCM_PRETEND_VERSION = version;