From b8e62002b5d344396feb32c30458ecd622897d50 Mon Sep 17 00:00:00 2001
From: Peder Bergebakken Sundt <pbsds@hotmail.com>
Date: Fri, 8 Nov 2024 21:23:14 +0100
Subject: [PATCH] python312Packages.msprime: relax numpy build-time constraint,
 unbreak

---
 pkgs/development/python-modules/msprime/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/python-modules/msprime/default.nix b/pkgs/development/python-modules/msprime/default.nix
index 83e1314a5501..c0cd877ccaaa 100644
--- a/pkgs/development/python-modules/msprime/default.nix
+++ b/pkgs/development/python-modules/msprime/default.nix
@@ -28,6 +28,12 @@ buildPythonPackage rec {
     hash = "sha256-2K55gHYWf2Mrj9fszVCJ+qqEyQNMppQi+IZCX5SlsBs=";
   };
 
+  postPatch = ''
+    # build-time constriant, used to ensure forward and backward compat
+    substituteInPlace pyproject.toml \
+      --replace-fail "numpy>=2" "numpy"
+  '';
+
   nativeBuildInputs = [
     gsl
     oldest-supported-numpy